I was mortified and livid to hear a colleague making an off-the-cuff joke concerning the 9/11 attacks today.
In blind fury, I spun on my heels and tore into him:
"Excuse me, do you find the September 11th attacks funny? Would you still find them funny if I told you I lost two friends in those attacks?"
Instantly shocked and sympathetic, he said "I'm so sorry, I never even realised. Were they in the towers?"
I said "Nah, they were flying the fucking planes."