I've recently adopted 4 little girls, Rosie, Bear, Delilah, and Madame Dupree. Soon they will be 5 months old. The only other rat that I've loved and cared for was male, Richard. Sooooo, I'm scared about spaying. It seems so traumatic and dangerous. Has it really made a difference with respect to tumors, etc.? Do you all get your girls spayed? How old? I'm very worried. I've heard stories of rats disemboweling themselves.