Intuition

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

A Litre of milk,
A carton of eggs,
A Litre of orange juice,
A head of lettuce,
A can of coffee,
And one pack 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 this 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."