Mr. D., my high school orchestra director, was irritated. Two violinists kept talking as he was talking. Instead of telling them to quiet down, he turned to the bass section and said to me, "Andrew, you're in (another ensemble besides this one.) What happens during a rehearsal when a violinist yells across the room, 'Hey! What are you going to have for lunch today?!'"
I paused and responded, "I don't know because that doesn't happen. People just don't do things like that."
"Exactly," he replied. "You just don't do things like that. You just don't do them."
The violinists stopped talking after that.