I hope the Moderators won't be too upset at this. (Ian knows where I live).
But, being ex-services I've dished out and received some extremely rough windups; for example, some involving being informed that close relatives were dead when they weren't. Others involved pain and copious amounts of humiliation. Some were just plain childish, but had that callous edge to them that the military is famous for.
One that particularly tickled me was in my last posting; I had a small office, and on occassion when I passed wind; I'd scream a certain corporals name; giving the impression I was really cross about something. The offending corporal would enter my office. I'd sternly say, 'Close the door behind you', and as formality ruled, he'd stand before me. I'd just stare hard at him, till he smelt the noxious odour my body had produced and he'd say, 'you dirty bast@rd' and walk out. (I was fully justified in torturing him - he came from Sunderland).
But I can't come up with any good windups that will spice up the life of my work partner (Wor Lass). I can only creep up on her and shout 'Boo' at the top of my lungs when she's cleaning windows so many times, before even I become bored with it.
So any window cleaning related windups posted here would be a great help to boost my morale; and keep Wor Lass on her toes.