Vacuum Cleaner Salesman

To get a massive and immediate attention from a buyer, the Vacuum Cleaner salesman opens a bag of horse manure and spreads it all over the carpet. Then he says to the possible buyer with confidence, "Mrs. if this vacuum cleaner can't clean all that manure I will eat the rest!" The lady asks, "Do you want ketchup with that?" Why the salesman ask? "Because we just moved in and we don't have electricity yet!"