Rejection dilemma

There's a man kind of in my life (translate: I sleep with him sometimes) that I hope never calls again. Most of us have been there/here, right?

I hope he never calls again cause I truly don't know what I should say to him.

Should I tell the truth:

You are severly lacking some of the basic social skills. You smell bad. Your place is disgusting. Your imagination does not capture mine. You can't even come close to being emotionally open and you don't really do it for me sexually.

Seems overly mean doesn't it? Not to mention who knows what his reaction would be? Men can be unpredictable and easily wounded by the truth.

I can't help but wonder though, if someone had told him this 20 years ago - maybe he would be a happier person today. Or at least maybe he would be getting laid more often.

Or should I tell him:

"No, I really don't think we should get together again. It can't go anywhere. I'm just not that into you/it anymore. Thanks, but no thanks."

Both rejections are true. Which is really the kinder rejection?

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