I Remember Physical Education In Vest And Pants [I Hated Physical Education Class]

So did any of you guys from the UK ever get pantsed or something like that by disgruntled students that had to go to class in their underwear?

For example, were there ever any cases where a friend of yours (or an enemy) had to do gym in their underwear and you didn't, so they decided to pants you out of jealousy so that you would be seen in your underwear too, or even do something like steal your kit so that you had to go in your underwear?