What is a dangerous man? Most women would answer: one who is physically violent. But abusive behavior is often more insidious. Men who want mothers, not partners, who prey on lonely, passive women, who are mentally ill, addicted, or emotionally unavailable, or who won't go away when asked to leave all fall into this dangerous category. Most women who have dated one dangerous man have in fact dated two or three, according to research. How to Spot...