A Ph.D. student, a post-doc, and a professor are walking through a city
park and they find and antique oil lamp.  They rub it and a genie comes 
out in a puff of smoke. 
 
The genie says, "I usually only grant three wishes, so I'll give each of
you just one." 
 
"Me first! Me first!" says the Ph.D. student. "I want to be in the
Bahamas, driving a speedboat with a gorgeous woman who sunbathes
topless." 
 
Poof! He's gone. 
 
"Me next! Me next!" says the post-doc.  "I want to be in Hawaii,
relaxing on the beach with a professional hula dancer on one side and 
a Mai Tai on the other." 
 
Poof! He's gone. 
 
"You're next," the genie says to the professor. 
 
The professor says, "I want those guys back in the lab after lunch." 


++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

 
Yes, the student and the postdoc came back after lunch.
 
They were granted another (final) opportunity for a wish.
 
The student said, I want to be a postdoc
and the postdoc wants to be a professor.
 
"So what do you want to be, professor?",
Without thinking, he said, let me be a graduate student, 
so I don't have to write proposals.