What circumstances forced you to do this and what reward did you get from it?
Duh, because I wanted a job
Out of curiosity, how is it implied by the employer?
Does he sit back on his chair giving you a crotch shot whilst saying, "What would you do for this job?" or is it generally more subtle?
I tried to. I failed a class in college and I appealed privately to the department chair (who I knew was gay) in his office and said something stupid like "I would do anything" to get at least a passing grade. I rubbed my hand absently on my crotch, and he rubbed his hand on his in return. But, believe it or not I could not go through with it. I got a D-, which is better than an F, I guess. My GPA went into the shitter, but I don't expect that even if I blew him I'd get an A. I didn't deserve any grade better than what I got!
He said, "come by anytime" but I never did.
Well, you're just stupid R3.
I have never had the opportunity present itself. But, I'd be interested to know how this kind of stuff gets started.