A woman was shopping at her local supermarket where she selected:

A half-gallon of 2% milk,
A carton of eggs,
A quart of orange juice,
A head of romaine lettuce,
A 2 lb. can of coffee,
And a 1 lb. package of bacon.

As she was unloading her items on the conveyor belt to check out,
a drunk standing behind her watched as she placed the items in front
of the cashier. While the cashier was ringing up her purchases, the
drunk calmly stated "You must be single."

The woman was a bit startled by the proclamation, but she was intrigued by the derelict's intuition, since she was indeed single. She looked at her six items on the belt and saw nothing particularly unusual about her selections that could have
tipped off the drunk to her marital status. Curiosity getting the better
of her, she said "Well, you know what, you're absolutely correct. But how on
earth did you know that?"

The drunk replied, "'Cause you're ugly"