Kind of starting from the bottom here...
"And, well, the fact that he's repeating behaviours that he knows are likely to be rewarded, even if he knows I'll ignore them if not given the cue, instead of trying something new, screams insecure to me. But maybe that's just a human trait rather than a dog one and I'm thinking human instead of dog."
In my opinion, this nothing to do with insecurity and everything to do with normal animal behavior--I get rewarded for these behaviors, I'm going to offer them more often. I don't know any other behavior to often, so I'm not sure where to go from there. Even humans are conditioned to this.
Here's a human example: I always, always, always get to work 10-15 minutes early. At my last job, one day I had a teacher that rescheduled a project presentation at the very last minute. I wasn't able to contact all of the managers, but did tell 2 of them, who evidently hadn't relayed the info to everyone else. All of my coworkers had become
conditioned to me coming to work 10-15 minutes early. When I hadn't shown up by 10 minutes after my scheduled time, my phone was blowing up with texts and phone calls from coworkers. Unintentionally, I had conditioned them to expect me there 10-15 minutes early.
If that's not good enough, take for instance an experiment that has been done numerous times. Each time the dog is fed, a bell is rung just before. This is done over a period of time, until every time the bell is rung the dog begins to salivate and it's body gets ready for digestion. It has become conditioned to the sound of the bell meaning feeding time. The bell has become a sign of a reward, the dog has become conditioned to come to the sound of the bell and get ready to eat.
He doesn't understand shaping yet, so he doesn't know that offering any behaviors that he doesn't already know can be rewarding. He knows he gets rewarded for sit, down, stand, whatever else, but he doesn't yet know that he can be rewarded for trying other things. So it's more of an issue of just flat not being there yet in his training, not so much being insecure. Just the way an animal's mind works--these things consistently get me rewards so I'm going to keep trying them.
Does that make sense? Not sure if I'm explaining that very well.
"I tried again with an IQ ball (the one filled with treats) but I really can't get past a mild sniffing. I reward sniffing, licking, or whatever behaviour towards the object. Since this is new maybe he needs more time, though."
How many times are you rewarding for the sniffing/licking? You could either be rewarding
too much for those behaviors, so he doesn't think he needs to go an extra step, or he could just need a slightly different approach. There are many, many ideas for shaping games in the thread I linked up there though, no need to repeat them. However if you do have questions feel free to ask.
Certainly don't mind helping.
How does he react toward people when he is with you? Is he generally unsure of people or shy? Aggressive in any way? Overly timid? What is his reaction to people when he is
with you?
If he is fine with people with you, and only insecure away from you, you can sort of skip some steps. If he is pretty unsure of people in general, then you have a little more work ahead of you.
Depending on how severe his insecurities are towards people, you
may need to shelve the therapy dog idea until you can get him 100% comfortable with people. True, he may help people be more comfortable in that line of work, but it certainly won't help him if he's not ready to cope with it. Don't mean to disappoint you in any way, but really and truly, the severity of his insecurities towards people is going to be the deciding factor. YOU are the one he trusts to keep him safe, and forcing him into a situation he doesn't think is safe will certainly hurt your relationship with him.
To give you a clearer example of the level of severities you can have....
My bf's dog, Dixie, is not what I would call fearful anymore, but she is extremely submissive. Understand that there is a difference. Dogs don't always submit out of fear, but more out of a non-desire to be the alpha. Just as some humans are leaders and some are followers, dogs are too. Dogs that don't want to be leaders submit out of the desire to not be a leader. But, submission CAN also be a sign of fear as well....but that's a whooooole different book, lol!
Anyway...so when Dixie was a very young pup, she was unsure of people. In the litterbox she was the pup who avoided human contact, was not curious, etc. This CAN be genetic, and at least two of her littermates I DO think had genes contributing to this. In Dixie's case I think it was learned behavior, as both parents were
incredibly timid. The mother rarely even lets her owners touch her. The father is dangerously fear-aggressive towards people. (I hate the owners of the parents, but again...different story...) So anyway, I think Dixie's fear was a learned behavior. We did a lot of work with her creating positive experiences with people. How we did that, again, is not exactly what I'm getting to here, but will get to later.
Now, Dixie looooooves people, no fear of people at all, but she is submissive. People may disagree with me here, but honestly Dixie is not afraid of people and really enjoys the company of people. But she does act submissive. She trusts me 100%, but prefers to lie down upon first greeting me. (Not a trained behavior, this is part of her submissive personality.) She is not afraid of me, and is very happy to see me, but prefers to lower herself. She does not want to be an alpha, and she expresses that with her body language. Sort of hard to explain without seeing.
Dixie is on the easy end of the spectrum.
Then there's Zeke. Zeke is 6 years old. Last year was the very first time he began to approach strangers
on his own and allow them to pet him. Zeke is on the opposite end of the spectrum. As a puppy, he would cower and urinate at the very sight of another dog or person. He was incredibly fearful of everything. We did go through separation anxiety, and fear aggression towards dogs. Z lived in an incredibly scary world(in his mind), and was so so so insecure. Zeke will never ever be a "normal" dog, but he improves daily. He has been a lifelong project. When he was about 4 years old, I had found a competent trainer and I felt Zeke was finally at a point where he could handle a small class. We made sure we got into a class with about 5 people, and no more. The very first day of class he was visibly stressed, heavily panting, glued to my leg(literally needed physical contact with me), unable to do any training because of his stress level. By probably the 3rd-4th week(I think), he was comfortable 2-3 feet away from me. By the 8th week the classroom was his safe place and he behaved in the classroom just as he did at home--a crazy high energy, high drive, tennis ball-obsessed nutzo dog.(What makes me love him.
) He could even heel and do various tricks for the trainer.
Outside of the classroom he was much "stickier" but still miles better than day 1. We did a ton of work to get him to that point, but he did get to that point--and that was huge for him.
He's gone from cowering and urinating at the sight of a new person, to being able to heel with my tall, deep-voiced male friend...being able to approach a very very very tall, hairy, extremely deep voiced coworker--all on his own--and letting him pet him...going to the vet and not being afraid of him until the Bordatella part. He has improved by LEAPS AND BOUNDS, and each improvement is a heartwarming moment for me, but he will never be a social butterfly.
Then there's Dexter, an abused Italian Greyhound/Daschund mix I worked with. When we tried to start clicker training with him, we found out that he would completely shut down at the sound of the clicker. The first day we ruined it with just 2 or 3 clicks trying to load it--he was so stressed by just that that he wanted nothing to do with either me or his owner. He was eventually able to understand that the clicker was a good thing, but it took a lot of time and patience.
So, where does your dog fit in as far as insecurities?
Sorry such a long post, this is a lengthy topic.
Lol, and thanks Tigerlily!