Anyone recall playing crab football at school?

I don't recall crab football, but we may have played it, in the First Year of upper school. When the weather was inclement we used the school hall for PE, and our teacher sometimes made us crab-walk from there back to the changing-room perhaps 10 yards away down the corridor.

I doubt I could do it now, with one bad knee and one replaced knee!

I remember getting crabs at school does that count ?😳