Why do men have such a hard time with women crying?

Ok, first the disclaimer: No, not all men have this issue. Some men are really great with crying, others are mediocre.

However, I have had a really high number of men say something like “I don’t do crying women” or “Women crying really freaks me out” or my favorite, just turning white at the sight of tears in a woman’s eyes and running out of the room really fast. And not just when dumping a woman, but over any tears of any nature.

Why is this? I have yet to meet a woman – even an antisocial woman who also gets along much better with men – who looses her cool at the sight of tears.

Note: Fluther thought this question had been asked before, in the form of this question. I think that’s hilarious.