Joe went to a psychiatrist. "Doc," he said. "I´ve got trouble. Every time I get into bed, I´m sure that there´s somebody under it. I haven´t slept in a week. I´m going crazy."
"Come to me three times a week and I´ll cure your fears."
"How much do you charge?"
"A hundred dollars per visit."
Six months later, the doctor met Joe on the street.
"Why didn´t you ever come to see me again"?
"The Pizza Delivery Man cured me for $10. He told me to cut the legs off the bed!"