I can tell you're single

A woman at the grocery store went to the register with these items in
her cart:

* a carton of eggs
* a quart of orange juice
* a head of romaine lettuce
* a 2 lb. can of coffee
* 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,
"I can tell you're 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 uglier than shit".