Creepers and how to politely deal with them.

I have nothing against people dating someone a lot older than them, but for me if they are old enough to be my dad, it's creepy when they start hitting on me or asking me out.

Usually I can handle myself pretty well with them. "Can I take you out to dinner?" "Sorry, I am going to be busy the next two weeks with school." Or whatever else I can tell them to make it clear I am too busy. Usually they get the hint and don't try again. However this one guy will not get the hint. The first time he asked me out, I changed the subject. The second time he went to my mother and hint to her, she hint back a h*ll no. I frankly don't want to even be friends with him just because he creeps me out. We never really talk and he is A LOT older than me, like 21 years older than me. He just keeps coming up with excuses and reason to talk to me and I have tried avoiding him, but it's like his creep radar knows everything about me and the people I hang out with, yet I know very little about him.

So what I am trying to figure what is a politely yet firm way of making him understand it ain't ever gonna happen, dude. Or I am going to have to say the hell with politely and just be all "Quit it!". I hate for him to get even creepier and then try murdering me or something.

Ideas?

Jam it back in, in the dark.

I am twenty-three.

What I know of his character is through mutual friends and the few times I have talked to him I always came away creeped out.

How ya doing, buddy?