I can't say I have always been able to maintain my facade. I spent a while as a Scoutmaster in the 70's. I had a lamebrained asst that built a giant bonfire, doused it with GASOLINE and nearly blew up the camp. I had gone to town for supplies and he was going to "surprise" me on my return. We were in the middle of a two acre clearing, and he lit up the night!!! The concussion was frightening. I lit up his ass, when I found everyone safe, and used some choice words learned in my Navy days (Nobody cusses better than a sailor) in front of the troop! I apologized, but the cows were out the door...
Well,you expressed your anger in such a way that I'm sure it made an impression on all concerned.
Sometimes people need a royal foot in the old behind to wake them up to reality.