NASA was interviewing professionals to be sent to Mars. Only one could go, but with one catch: He couldn't return to earth.
The first applicant, an engineer, was asked how much he wanted to be
paid for going. "One million" he answered, "because I want to donate it
to M.I.T."
The next applicant, a doctor, was asked the same question. He asked
for $2 million. "I want to give a million to my family," he explained,
"and leave the other million for the advancement of medical research."
The last applicant was a lawyer. When asked how much money he
wanted, he whispered in the interviewer's ear: "Three million dollars."
"Why so much more than the others?" the interviewer asked.
The lawyer replied, "If you give me three million, I'll give you one
million, I'll keep one million and we'll send the engineer."