A man was in his kitchen swatting flies with the flyswatter.

His wife walked in and asked him, "You getting any of them?"

The man coolly remarks, "Yep! Three males, and two females so far"

Astounded, the wife asks, "How in the world do you know if they are male or female?"

Without missing a beat, the man says, "Three were on a beer, two were on the phone!"