A friend of my Dad's joined the army when he was eighteen. Not the most muscular of people he was occasionally the butt of the joke for the more established members of his Brigade (division, troop, whatever....). One night, whilst scrubbing the toilet floor with a toothbrush as punishment for a misdemeanour his colleagues had set him up for, he decided it was time to get his revenge.
At the weekend he manufactured a happy occasion to be celebrated and cheerfully took the entire Brigade to the pub, where he bought each member a drink. Much merriment ensued and the Brigade rolled back to the barracks early in the morning.
As soon as everyone had settled down, he nipped outside and plugged in an electric fence generator he had borrowed from a neighbourhood farm. The other end he had connected to the tin urinal in the barracks.
He crept back inside and settled down for the fun.
