A guy was attending a masquerade Halloween Ball, and 
dancing with a girl who was wearing a map of Texas for a 
costume. 

Suddenly she slapped him hard and stalked off the dance floor.
"What the hell happened?" asked a friend who had witnessed 
the entire event.

"I'm not really sure." the man replied, rubbing his red cheek. 
"When she asked if I had ever been to Texas, I put my finger on 
Amarillo to show her, and she let me have it."