A new vacuum cleaner salesman knocked on the door on the first house of the street. A tall lady answered the door. Before she could speak, the enthusiastic salesman barged into the living room and opened a big black plastic bag and poured all the cow droppings onto the carpet. " Madam, if I could not clean this up with the use of this new powerful vacuum cleaner, I will EAT all this s...!" exclaimed the eager salesman. "Do you need chilli sauce or ketchup with that?" asked the lady. The bewildered salesman asked, " Why, madam?" "There's no electricity in the house..." said the lady