Shawn: What does it look like I'm doing? I'm having a seance.
Gus: You can't have a seance.
Shawn: Gus there are no rules against having a seance. Anyone can have one. It's like a garage sale or plastic surgery.
Gus: Okay, first of all, technically you need a permit to have a garage sale. Secondly, *you* cannot speak to the dead!