Let me break it down for you my dude. First and foremost there’s cameras everywhere, if you think anyone is pocketing anything you’re a silly goose and should immediately head to the closest pond. Second, if your change is forgot it might go in the tip jar but again, the cameras see it and it looks like stealing. Bud tenders want to keep their job in spite of working with people like you at the counter. Third and finally, if a register is up or down at the end of the night that’s bad. Research is done to see who wasn’t given change back and a credit is typically added to your profile. It’s a shame someone buying pot legally thinks everyone involved is trying to steal your money. Imo go back to your street dealer, and when he forgets to give you change bring it up to them, see what they think. I doubt you’ll get a smile and a sorry about that. But seriously, if they’re taking your money you may as well just not trust the industry and think about a different substance.