He ate what was served to him, never said no to a suggestion, and therefore lost a lot of money on bets (James is terribly good at persuading him into such ventures, and there's always some manoeuvre that ends up draining him of money, but Scorpius is having fun, and that's what's important, isn't it). He has watched a lot of bad horror films in convivial company, and lost his fear of Avery's creepy puppet as a result.