An old couple, Margaret and Harry, are in Croydon, London. Harry always wanted a pair of authentic cowboy boots, so, seeing some on sale, he buys them and wears them home, walking proudly.
He walks into the house and says to his wife, "Notice anything different about me?"
Margaret looks him over, "Nope".
Frustrated, Harry storms off into the bathroom, undresses, and walks back into the room completely naked except for the boots. Again he asks, a little louder this time, "Notice anything different NOW?"
Margaret looks up and says, "Harry, what's different? It's hanging down today, it was hanging down yesterday, it'll be hanging down again tomorrow."
"Furious, Harry yells, "AND DO YOU KNOW WHY IT'S HANGING DOWN, MARGARET?"
"No, she replies.
Harry yells, "IT'S HANGING DOWN, BECAUSE IT'S LOOKING AT MY NEW BOOTS!"
Margaret replies... "You should have bought a hat, Harry. Should have bought a hat!"