Super Duper
A guy wakes up in the hospital E.R., looking like he'd been chewed up by a coyote and shit off a cliff.
The doc tells him, "You've got a skull fracture, but not too serious, and I set your broken arm and cleaned the scratches and cuts on your face the best I could. So, what happened to you, anyway?"
Guy says, "I sell vacuum cleaners door-to-door. Went to this one house, conned by way in and threw a bunch of dirt and grit and shit on the woman's carpet, and told her I could clean it up real easy with my Super Duper vacuum Cleaner."
The guy pauses a minute, trying to think, then added, "The woman grabbed the Super Duper outta my hand and hollered, 'That's great, you son of a bitch, but I just moved in my new house and the power isn't on yet!' And that's all I remember."