Another example.
One day, I had a real life (very bloody) battle with rodentia invading my home.
There was a scenario going on a the time, and I wrote about it in the NG. Later that day we had a frame and when our group dropped ThirdUp out of nowhere shouted "RATS AWAY" on the open channel.
I have never dropped another bomb without that macro going off.
In time my CPID evolved from "=B17=" to "Ratbo" and few even *commented* on it because they all knew the background.
So in my case the "dreaded macro" served as a reminder of some pretty funny stuff.
Plus in scenario play, it lets my CO know that the group(s) I am leading reached target and dropped.
-W