A fair time ago in a city north of the Tay, a headteacher was interviewing candidates for a drama post when in charged the most excitable of his assistant heads holding a BB Gun which he waved in the direction of the startled heidie:
"Look what I just took off Hughes in the science block!"
His boss quietly calmed him, put the offending weapon in his dsk drawer and ushered his subaltern out the door. Embarrassed, he turned to the candidate, still sitting in mid-sentence: "I'm most awfully sorry for that interruption; I hope it hasn't disturbed your train of thought too much."
The dramatic one smiled laconically and murmured: "Don't mention it. I assumed it was a coup d'etat." He got the job.