Couldn't hurt a fly

There were two flies buzzing around in my kitchen. I opened the window extra-wide, but they still wouldn't go out. The good thing is that they didn't come near my food (were they in some sort of courtship dance?), but the bad thing is that they were flying around erratically and the buzzing was so loud, it was driving me mad.

As murderous thoughts entered my head regarding these flies, I recalled the saying "he couldn't hurt a fly". That saying just took on a new meaning. It wasn't that I was too kind to kill the flies; I just knew I wasn't quick enough to swat them.