Savvy snake owners live trap their own mice, so they don't have to lie to the pet stores.
When I worked at summer camp we had a snake pit at the nature center. We had no problem trapping plenty of mice for their dinner. That's one reason I would not keep snakes now. I would not like to feed them the mice, although I realize that they have to eat just like any other animal. I just don't want to be the facilitator.
I thought the law allowed for killing an animal in self defense. What a crazy system that would fine a person for protecting themselves.
Of course, it's illegal to destroy an eagle's egg (fines; possible jail time); but it's legal to kill a baby before it's born. If that isn't evil, I don't know what is.