I agree, depends on what you're waiting for.
I waited half an hour at a grocery store once. This woman was there with five kids and they kept bringing things up to the only open register (like, the kids would go back and forth between the register and the store). It was 3am. There was a line. I had no choice.
I sat down on the floor and played with an etch-a-sketch that was on a shelf nearby while people openly bitched about how rude that family was being. Seriously, half an hour. Gah. The kids were seriously going to try clothing on
and exchange sizes while there was a line behind them. I would be mortified, how could anyone think that was okay behaviour ? Bleh. I don't want to judge someone without knowing what's going on in their life, but ... dude... if these people had some kind of disability or mental illness, the store should have at least tried to find a way to open another lane while that insanity carried on (they didn't call for anyone even until over 20 minutes in).
I waited an hour for a tattoo appointment. I had cookies and sat on lots of things, so it was okay.
Six hours in the emergency room as a kid. Split my lip open, got stitches and a stuffed cat.