When my friend T broke up with his boyfriend J, the saddest part was what to do about their baby, E. They arranged an elaborate custody agreement, that lasted until J moved to the UK. My other friend W has joint custody over his little one, L, after he and his ex girlfriend broke up. E and L, as you've probably guessed, are dogs. And according to today's Telegraph, pets totally suffer psychological distress when their owners break up. Dr. Sean Wensley says, "Dogs that are stressed can show signs of compulsive disorder. This may include chasing their own tail or excessive licking of one or more limbs." And they're not alone: Cats and parrots self-harm too.Dr. Wensley adds: "Cats and dogs, like young children, are sensitive to adult human emotions, and when these become tense or unpredictable this can cause stress-related health problems in our pets." So, depending on the situation, you should probably heed the doc's advice: "We would urge owners to make arrangements for their pets that minimize disruption to their pets' routines and allow their pets' lives to remain as stable as possible." Of course, each scenario is different, just like each pet is different. Especially since a new mathematical model shows how and why animal personalities develop. Just like humans, some animals are routine and rigid, while others are curious, flexible and interested in change. For some reason, the idea that an animal has a personality seems new to science, which seems bizarre. But back to custody battles: My ex and I had a cat together, but when we broke up, I knew I was leaving them both. Have you ever had to have a custody agreement for a pet? Pets Suffer From Stress Of Marriage Break-Ups [Telegraph] Animals Have Personalities, Too [MSNBC]