sparky_mcsparksalot

Not OP, or dog trainer, but have a graduate degree in Behavior Analysis. You wouldn't take the vest off when/after the dog pees; that would actually teach him that peeing ends work time. I suspect OP is simply not using punishment techniques and instead using positive techniques to shape the dog's behavior (for example, praising the dog when he pees while not working, and over time and repetition, the dog learns to pee while not working). Hope that answers your question :)

Ha! I love the fact that critters (humans included) learn do the least behavior to earn the reward. Your story made me laugh aloud, I can imagine our dogs pretending to do the same thing just to get the treat!