A little old lady answers a knock at her door to be met by a travelling vacuum cleaner salesman.
Before she had a chance to speak, the man tips a bucket full of dog s**t over her carpet and explains, "Madam if this vacuum cleaner does not remove all traces of that dog s**t from your carpet, I will eat whats left".
"Well, she says. I hope you are hungry pal, cos the b**stards cut my electricity off this morning"..