I Can Work the Damn Thing
After yelling at Sam for buying a can of tuna when they were, in fact, not in possession of a can opener at that particular time, Dean had left the motel room in order to ask the proprietor whether he had one that he could borrow.
Sam had followed after a beat. The owner led him to the kitchen where Dean was about to work, of all things, an electric can opener. "Uh, Dean, maybe I should do that…"
"I can work the damn thing, Sam," Dean said to him impatiently. He turned the gadget on and in a flash the device slipped and red liquid sprayed onto the cream walls.
Sam stepped forward too late, even as beside him the inn's proprietor threw up onto the tiles. "Dean…!"