I play with a bunch of very casual poker players, so there aren't any true degens in the group. Once in a while, someone will get ****-faced and play like a monkey, but I don't think anyone has ever dusted off more than $100 playing drunken .25/.50. Wimps.
I have mild degen tendencies (thank you Adult ADD), but I'm good at keeping them in check. When I used to play slots, I would sometimes chase losses longer than I should. If I'm not careful, I can also do this when playing poker. But it's
never been money that I couldn't afford to lose, and I generally mitigate the problem by only taking 3-5 BI with me to a game (depending on the stakes).