Assuming you’re referring to U.S. law, I’m not a lawyer, but if a character is in the public domain, they’re available for anyone to create new material with. Using the same list of characters in a different game/story that’s your own creation should be fine.

The great news, it stops being a paradox if, instead of a moral standing, we treat it as social contact. If someone does not follow the contract, then they are no longer covered by it either.

This may be unpopular, but the stalls are handicap accessible, not reserved.

I do try to be considerate. I keep time short and at work, where I am aware of where people who would have a greater need than I are located, then I go to the restroom they’re least likely to use.