Lunacy in the lap lane by Debra J. Schmidt

My husband and I were lounging by the pool at our health club when we were rattled out of our revelry by a commotion in the lap lanes.

For 10 minutes or so we had been chatting while 2 women were swimming laps in the pool in front of us. They were in separate lanes. One woman was in her mid-40s and the other woman was around 70. Suddenly, the younger woman stopped swimming, and whacked the older swimmer on the shoulder with her Styrofoam kickboard.