After emigrating to the United States, a Chinese doctor struggled to find a place in a hospital. For want of anything better, he opened a modest clinic, with an ingenious sign hanging on the door:
“Treatment $20 - Not cured? Reimbursed up to $100!”
One day, an American lawyer passed by. Intrigued, he read the sign and thought:
“What a scam! But after all... easy money!”
And he walked in, confident.
Lawyer: “Doctor, I've lost my taste.”
Doctor: “Nurse, bring bottle n°22. Three drops in the mouth.
Lawyer: “Ugh, it's kerosene!”
Doctor: “Congratulations, your taste has returned. That'll be $20.”
Annoyed but not discouraged, the lawyer returned a few days later.
Lawyer: “I've lost my memory. I can't remember a thing.”
Doctor: “Nurse, bottle no. 22, again. Three drops.”
Lawyer: “Wait a minute! That's kerosene again!”
Doctor: “Great, memory's back. That'll be $20.”
Furious but stubborn, the lawyer tried one last trick.
Lawyer: “This time, it's my eyesight. I can't see a thing.”
Doctor: “I'm sorry. I don't have a cure for that. Here's your $100.”
And he handed her a $20 bill.
Lawyer (squinting): “Hey, wait... It's only a 20!”
Doctor: “Wonderful! Your eyesight is cured. That'll be $20.”