Over-competitive games teachers
My 15 year old cousin was rather well built for his age and generally excelled at sports. One of the PE teachers decided that he needed to reassert his authority over this prodigy with a display of masculine power and potency, and so organised a 400m race between the two of them.

They sprinted off round the track, resulting in the PE teacher soundly beating the 15 year old upstart. Nobody was particularly impressed by this, but whatever tiny amount of kudos he may have gained was more than lost when, after crossing the finish line, he collapsed onto all fours and vomited over his hands.
written by Sp*gh*tti*Hoop*, approved by Phil

Yes, and the ability to flatten puny 12-year-old kids into the mud with rugby tackles is not really a valid demonstration of your sporting prowess, Mr Rich. You fucking evil hairy gorilla.
written by Ma*t Fa*ham, approved by Log

I dearly regret bunking off one particular day in my 4th year. That was the day that one of the former pupils came back to school, as he'd promised, and kicked the living shit out of Mr. Burns, the short-arsed, swarthy, bullying games teacher.
Those who were there assure me that: it was "a beautiful moment", "poetry", "he had it coming", and my favourite: "he whimpered".
Not even touching Jeanie's quim for the first time was adequate compensation (Jeanie was our dog).
written by un*le mo*ty, approved by Ponky