A woman walked into kitchen to find her husband stalking around with a fly swatter.
“What are you doing?” she asked.
“Hunting flies”, he responded.
“Oh !! killing any?” she asked.
“Yep, 3 males, 2 females”, he replied.
Intrigued, she asked “How can you tell?”
He responded . . . . . "3 were on a beer can, 2 were on the phone…