bad sign

I’m in a house with Dave. He is somehow terrorizing me. I go into a bedroom to find him. He tells me to strike or saw through a metal pipe with a metal object with a serrated edge. I run to find such an object and come back with a leatherman multi-tool and a round tube-like thing. I ask Dave if either is ok, but he is not there. As I go to strike the pipe, I realize the pipe is part of a bomb and the spark or impact will set off an explosion.