but I have heard of some horror stories from friends..

One friend's MIL hated her so much that she would not just ignore her at Christmas time...but give her son something really expensive, like a matching set of designer suitcses and a ticket to travel overseas, and her daughter in law got a box of chocolate covered cherries.

Grant me the senility to forget the people I never liked,the good fortune to run into the ones I do,and the eyesight to tell the difference.