One for the donkey

Two men walk into a pub and one of them gets the first round in and says to the barman, "I'll have a pint for me and a pint for the donkey." The two guys drink their pints and the first guy says to the barman "I'll have another pint for me and a pint for the donkey."

This goes on for a while and when the first guy nips out to the toilet the barman says to the second guy - 'I don't want to cause any bad feeling between you and your friend but I think that you should know that he keeps asking for a pint for himself and one for the donkey'.

The second guy replies, "I know. He aw.. he aww... he always says that.'"