The No. 91!
Two Irish friends leave the pub. One says to the other,
"I can't be bothered to walk all the way home."
"I know, me too but we've no money for a cab
and we've missed the last bus home."
"We could steal a bus from the depot," replies the mate.
They arrive at the bus depot and one goes in to get a bus,
while the other keeps a look-out.
After shuffling around for ages, the lookout shouts,
"What are you doing? Have ye not found one yet?"
"I can't find a No 91 bus."
"Oh Jeysus Christ, ye thick sod,take the No 14
and we'll walk from the roundabout."