"Isn't it Ironic"

and unlike Ms. Morrisette's 1996 song, this does fit the definition:

At last nights "Troop Appreciation Night" at the Senators hockey game, an enthusiastic supporter was waving around an extremely over sized cardboard or plastic "Support Our Troops" yellow ribbon which in her excitement she did not notice was hitting one of the uniformed servicemen sitting two seats away from her in the head on every swing to her left (the symbolism of that I'll leave for you to dwell on).

And to make matters worse, as the crowd began to laugh and cheer she began to wave it more franticly forcing the soldier to have to cover his head with his hands but all the while smiling and being a good sport about it.