"It's late after the party down in the sewer tunnels. Scents are in the air, moods are high. Somebody might have spiked the punch. Probably me. We catch each other's glances. You're not going topside tonight."
Drawn by Spunky at FAU 2010. The essence of a rat is seen in how mischievous he is without saying a thing. I think this does the trick.