Not very funny to read probably, but we had a good laugh at the time...
Colleage from flight school in a 737 behind us, waiting to line up RWY 18 in FRA, I as FO in an A320.
TWR: LHxxx, you see the Airbus in front of you?
737: LHxxx, affirm, we do
Me: Tower, correction, you must mean the >>beautiful<< Airbus in front of him?
TWR: LHxxx behind the beautiful Airbus in front of you, line up RWY 18 behind
737: ggrmbl... eeuhm... well... behind the Scarebus we will line up behind then.
I love it when they play along :-)
P77