What makes a man cry?

Watching the woman he loves walk out the door.

If the woman he loves cries, he might.
Feelings of inadequacy.
If he loses a loved one.
Extreme physical pain.
Not being able to help someone he loves.
Extreme joy usually related to his children.
On rare occasions, love or declarations of love.

Waking up with Rosie O'Donnell next to you has to be way up there on the list

Kick him real hard in his balls. I could never do that.

Usually his woman, or children.

The movie 'Field of Dreams'

Usually his own actions

Human emotions?

Too much salt water?