Roxy, I've noticed that, too--the treats stop as soon as we've performed the desired behavior once or twice. We're just going to have to be firm with these humans--no treats, no desired behavior! That'll show them!

I never have learned to swim. My Mom tried wading out into a lake to get me to swim to her. I did, but when I got to her (she was chest deep in the lake), I of course tried to climb on top of her to get out of the water. Since then, there's been no way I will go beyond wading! That gadget you're wearing, although stylish, doesn't look like something I would trust!

Best wishes,
Hysson

EDIT: PS: Mom thinks I'm a disgrace to my Labrador Retriever heritage! Now if she'd just let me climb on her head in Lake Superior, this wouldn't have happened!