A plumber attended to a leaking faucet at the neurosurgeon's house. After a two-minute job the plumber demanded $150.
The neurosurgeon exclaimed, 'I don't charge this amount even though I am a surgeon."
The plumber replied, "I agree, you are right. I too, didn't either, when I was a surgeon. That's why I switched to plumbing!"
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I'll bet Freddy doesn't bite his finger nails
