So now that I've said that, let me offer a personal apology for ALSO being guilty of some of the no-no's on this list.
But to be honest, I find that most Texas people are very gracious when shopping. MOST. It would seem some didn't take 'People-ing 101.'
Seeing as rain is a natural occurrence, it would seem strange to some that capturing and then saving that rainwater would be illegal.
That being said, in some states, while it is not illegal to capture and save rainwater to care for animals or to water plants or crops, it is restricted when it comes to using that saved rainwater for human consumption.