Every morning I stand on my porch and toss peanuts to four squirrels that live in the trees in my yard. The squirrels listen for my door to open and scurry out of the bushes and climb down from the trees and come and sit in a line and wait for me to toss each of them a peanut.

This morning I only had one peanut left in the bag and I tossed it into the yard expecting the fastest squirrel to grab the nut and run with it. Instead the four squirrels got into a fight and while they were chasing each other around and rolling in the grass, a crow that had been watching the squirrels, swooped down out...