Bum Joke

An Englishman, an Irishman and a Scotsman went into a shop during The war.
I'll have an apple,' said The Englishman. That'll be £2,' said The shopkeeper. The price is gone up with The war.'
I'll have an orange,' said The Scotsman. That'll be £3,' said The shopkeeper. The price is gone up with The war.' Then he noticed that The Irishman had a hump on his back.
'What's that on your back?' he asked him. 'It's me bum, said The Irishman. 'It's gone up with The war.'