As well as women using child custody threats to make a man stay in relationship.
This reminds me of a story I found funny...
One family member's husband threatened to divorce her time and time again, every time he got upset (over stupid things). The wife held her tongue and bore the abuse until she could take it no more. One day after his tirade, she replied, "divorce me if you want, but you get the kids." They had nine, one being handicapped. Never again did he threaten her with divorce. They've been married 45 years now and have a wonderful relationship.