You have Mrs. Trenchpot's class. All period you are sitting there glaring at her. She, on the other hand, seems far more jovial and happy than usual. After class you go up to her desk, trying your best to look stern and threatening.
"Hello Dave."
Good, she is the cause, that makes things much simpler. Now, you just have to be stern and stay strong.
"Give me back my body", there, that's a good opener.
"No" Mrs. Trenchpot responds.
"Why not?"
"Because you did not say the magic word. Did your parents not teach you manners?"
Great, she likes to mess around.
"Please, give me back my body."
"Young man, what you did to me was dreadful, and I think you need to stew for a bit and learn your lesson."
Now your mad.
"Listen, you old, nasty SHE-HAG!"
"WHAT DID YOU JUST CALL ME?!?"
Oh crap.
"You know, I was being nice and gave you this attractive and familiar body for you, but if you're going to talk to me like that, I shall have to be much nastier."
Okay, you have now learned the first rule of dealing with witches, do not call them she-hags. She snaps her fingers and the room starts to spin. You want to throw up but can't even feel your stomach. Then everything turns black. As color begins to return, you realize you are not in Mrs. Trenchpot's classroom anymore. So, where the hell are you?