Just not intentionally.
My buddy finally found a place to teach, a loaner space in a school. Being his bud, I said “sure, I’ll come help you out”. 'cause, you know, we’re friends and all.
First class tonight: not bad, he had about ten people. We worked pretty hard, did some sweating, some hard-ish sparring, the drill.
Walking out the door, I stepped over the door jamb, hit some sand or similar and went down into a perfect split, bounced willy and the boys off the weatherstrip plate.
I think my good pal is still laughing.
Friendship is overrated.