This is one of my sisters favourite jokes, so she couldn't resist when she found this postcard:
Two guys walk into a bar and one guy say to the other guy;
"Go up to the bar there Donkey and order 2 pints, I'm just going to the bathroom".
So Donkey goes to the bar and the barman says;
"That's really mean, why does your friend call you Donkey?"
And Donkey says;
"Oh he-ah, he-ah, he-ah, he always calls me that".
From Aideen when in Sydney, Australia - 2012