A guy is at the supermarket doing his weekly shopping when he notices a foxy new clerk running the Express Check-Out. When it's time to check out, he of course heads to her aisle. When it's his turn he puts his groceries, four frozen pizzas, a tube of toothpaste, and a Maxim magazine on the counter. The clerk looks at him and smiles saying, "Single, huh?"
"How could you tell?" he says with a smile.
"Because you're fucking ugly."