"My mother in law wore a wedding dress to my wedding." As the old adage goes, when you marry someone, you're also marrying their family. Two families become one, whether you like it or not. Sometimes, your new family, your mother in law especially, will have some pretty strong feelings about the upcoming nuptials. What's your mother in law horror story?

"My mother in law wore a wedding dress to my wedding." As the old adage goes, when you marry someone, you're also marrying their family. Two families become one, whether you like it or not. Sometimes, your new family, your mother in law especially, will have some pretty strong feelings about the upcoming nuptials. What's your mother in law horror story?