Snake charmer is actually a townsfolk that has a massive tell that they’ve jumped.
Namely, the demon (now the snake charmer) has LITERALLY NO REASON to not tell everyone they were snake charmed. Being the demon, they also know who the minions are, so they can also instantly out all the Minions. This leaves the snake charmer (now the demon) in a situation where they have to win the game by themselves.
An outsider getting jumped is literally just a normal night. Like literally 1 person dies, that’s all. It’s hard to tell anything different went on.