Now come on tell me this one's not funny?

A tramp walks into a bar and orders a drink. ‘I don't think you're going to be able to pay for that, are you?’ says the barman. ‘Okay,’ says the tramp. ‘If I promise to show you something you've never seen before, will you give me a drink?’ Reluctantly, the barman agrees, and the tramp pulls a hamster out of his pocket and puts it on the bar. The furry creature runs over to the piano and bangs out a brilliant version of Imagine. ‘That was amazing,’ admits the barman as he pulls the tramp's pint. Once he's downed it, the tramp asks for another. ‘I'll need another miracle in return,’ says the barman. So this time the tramp pulls out a frog and puts it on the bar. The frog clears his throat and sings Bohemian Rhapsody. At this point, a man sitting in the corner of the bar comes up and gives him £100 for the frog. When he's gone, the barman says to the tramp, ‘Blimey, that's cheap. You could have got much more.’ ‘It's okay,’ replies the tramp. ‘The hamster's a ventriloquist.’