Jim went into a pub and said to the landlord: ‘If you give me free drinks all night, I’ll entertain your customers and they’ll stay all night buying drinks.’
“How will you do that?”
Jim put his hamster on the piano. The hamster began playing the greatest piano music anyone had heard.
“That’s incredible! Have you got anything else?”
Jim put his parrot on the bar. The hamster played the piano and the parrot sang along. He was like Pavarotti. Everyone was amazed and stayed all night drinking.
The landlord was delighted. “I must have these animals. Will you sell them to me?’
Jim said no.
“Will you sell one?”
“OK, I’ll sell the parrot for £100.”
Fred whispered to Jim and said: “That’s stupid selling a clever parrot for a £100.”
“The hamster is a ventriloquist.”
(this joke has been modified)


