At a game at a D&D convention, that's pretty much exactly what we did, only worse. Polymorphed the bad guy into a puppy, after having hit him with Curse and Blindness.
Heh. Toward the end of a long running convention campaign, (anyone remember Living City?) my group immediately after a major fight got jumped by a suddenly appearing pit fiend.
He didn't get to do anything. Dominate Monster is a wonderful spell, especially with Greater Spell Penetration.
"Rude! I was talking here! Shut down your fear aura and any other abilities you have running, stand there, and take no further actions unless I specifically order them."
"Now, what was I saying? ... oh gods, fine, you can respirate so you don't choke to death."
The GM almost choked himself when I let him know the spell duration was in weeks. "Oh, no, he's gonna be my meat puppet for a good long while, seeing as I can cast the spell every day."

As for magical careers, how about Beppo the Magic Clown! He's a hit at kids parties!
-k