Free joke of the day the kitchen

I walked into the kitchen one day not too long ago to find my wife stalking around with a fly swatter.

"What are you doing?" I asked.

"Hunting Flies" she replied.

"Oh... Killing any?" I asked, after pausing to watch her make several rounds around the kitchen table.

"Yep, 3 males and 2 females", she replied.

"How can you tell?" I asked, quite intrigued.

"3 were on the refrigerator and 2 were on the phone."