Latest IBWUMS build. Started up a new play through in Riverside. Picked up a pipe wrench and put it on belt left. pressed 2 to use it, but just shoved the zombies with it in my hand. Bam, killed the Z instantly and knocked off all of their clothes. The clothes disappeared from the corpse and the model was naked. Happened many times over again after that. I've been playing this build extensively, but not using the pipe wrench as a weapon. maybe it's bugged? UPDATE: shoving zombies is killing them even with no weapon in hand.