"Ain't logical. Cuttin' on his own face, rapin' and murdering - Hell, I'll kill a man in a fair fight... or if I think he's gonna start a fair fight, or if he bothers me, or if there's a woman, or if I'm gettin' paid - mostly only when I'm gettin' paid. But these Reavers... last ten years they show up like the bogeyman from stories. Eating people alive? Where's that get fun? " - Jayne Cobb, "Firefly"
Actually that was from "Serenity" :P