Supermarket Logic Problem

Uncle Ben sent this one in.

A woman was shopping at the local supermarket where she selected: A half-gallon of 2% milk, a carton of eggs, a quart of orange juice, a head of lettuce, a 2 lb. can of coffee, and a 1 lb. package of bacon.

As she was unloading the 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 the purchases, the drunk calmly stated, 'You must be single.'

The young woman was a bit startled by this proclamation, but she was intrigued by the derelict's intuition, since she indeed had never found Mr. Right. The woman looked at the 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 the woman, she said, 'Yes you are correct. But how on earth did you know that?'

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