I have long arms, which vexed my mother no end. When donkey jackets were the in-thing, she knitted cuffs on the ends of my sleeves so the jacket fitted.
One time, she was knitting me a jumper and had bought extra wool knowing she'd have to make the sleeves longer.
We heard her mumbling some curse to herself as she needed yet another ball to finish the 2nd sleeve.
A few minutes later she was heard remonstrating herself, then she fell about laughing. It took us a while to get it out of her, she was laughing so much she had tears running down her cheeks.
Well, the daft old thing had only been knitting a 3rd sleeve!!
She never lived it down.