It's not really a joke in the usual sense of this thread, but it's had me chuckling for a couple of days, since watching Carry On Up The Khyber. I don't remember the line exactly, but the gist of it was, in a scene of general chaos/retreat...
Officer: Fire at will!
Soldier: Why do they always fire at Will? 'e's alright, Will...
"The greatest Carry On Film of them all" as it was described in the independent.; brilliant fun and my favourite of the series, many of which were pretty ropey.
My favourite scenes : in the Khyber pass where thr tribesmen have sabotaged the machine gun replacing the drum magazine with a gramophone record. The's the scene where someone's head has been substituted for the meal under the silver cover to frighten the British - "we didn't order that, send it back!" And of course the calm banquet during the battle .
But my favourite scene is near the beginning where the aide-du-campe is warning Sir Sydney Rough-Diamond (Sid James naturally), there there was a spot of bother that could lead to rebellion "You're exaggerating man", "It could undermine the whole British hold on India" "Don't be ridiculous, keep a sense of proportion". "It could jeopardise your position in a really cushy number" "This is serious, we must get onto it right away"
Sorry for digression but I love that film. It may be of its time and not wholly PC nowdays, but given the British characters are the biggest buffoons of the lot I think it's forgivable