How to tell the Sex of a Fly

JUST TOO CUTE.

This is the cleanest E-mail jokeI've come across in a long while!

A woman walked into the kitchen to find herhusband 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.