Some time ago I wrote about how I was having problems getting Mellie to wear her collar. Every time I put it on, she would immediately begin to "clean" it off her neck and get her lower jaw caught under the collar strap. Since I wrote that, I saw a couple other posts from other members who had the same problem. I've been working to get Mellie to wear her collar and have been making some progress, so I'm going to share what I've been doing in the hope it helps someone else.
First, I adjust the collar so that it's VERY loose, so that if she gets her jaw underneath, she can get it out herself without my intervention.
Then I put the collar on her only during times when she will be distracted by something else and not focus on the collar. This is called desensitization.
The times I have her wear her collar are times she finds enjoyable...playtime and mealtime. This is called association. She associates wearing the collar with something she enjoys.
So far, I'm making slow progress. When I first tried to introduce her to a collar, she couldn't wear it at all. Now she's wearing it for about 15 minutes before it starts to bug her. If I do it every day, she should be able to wear it longer and longer.
Now, if I can figure out how Tommy is actually unfastening and removing HIS collar....