After an hour of discussion, we agreed on a name: Guilt. Until the last moment we were gonna call him Yield.
Other cool names we came up with (though most were taken):
Davos, Bronn, Snow (those 3 are from A Song of Ice and Fire)
Fury, Wrath, Axe, Yoda, FUBAR, Havoc, Chaos, Acne, Scurvy, Brute, Scissors, Outrage, Piglet, Above (Death from Above!

).