Sam threatens Dean with a "drive-by" in this clip from Supernatural. It's a nice tease for the episode "Two and a Half Men."
Added:
On the episode "Two and a Half Men," the brothers come across a baby and a debate breaks out over how to raise it. Watch the promo now.
Added:

Supernatural Season 6 Episode 2 Quotes

Dean, no offense, but if you don't walk out that door, I'm gonna shoot you.

Lisa

Welcome to the party, Guttenberg.

Sam