Perhaps a new weekly feature at Trimama.com?
If you are running in a race, say, a marathon, and the athlete two steps behind you starts to sing out loud the song on his ipod you:
A) Shrug and go into passing gear to run on the other side of the road
B) Exclaim, "I love that Billy Joel song" and sing along out loud with him, knowing that since you sing slightly off tune anyhow, between the two of you there is wonderful harmony.
C) Remain indifferent, run another mile, then bang your head against a tree because you can't shake the Billy Joel song from your head
D) Other (feel free to add on)