Hunting Flies

A woman walked into the 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 them apart?”

He responded,
“3 were on a beer can,
2 were on the phone.