the razor's edge

Evan: "You should grow a beard. I'll make you a deal: you can either grow a beard or get washboard abs."

Eric: "I tell you what: I'll make you a deal. The TV room is the only room with carpeting in it, and that carpet is always covered with your Legos. If you'll clean up your Legos every day, then I'll go in there and do sit-ups. And eventually I'll have washboard abs."

Evan: "I think you should grow a beard."