Well I've been getting a lot of mail and advise that rats do better in pairs.
I went out and got Zaphod a pal. He is a Black (may grow up to be Blue) and White Mutt Rat. He is very sweet and a little younger than Zaphod. His name is Ford Prefect (Zaphod's cousin in the book where I got their names). He loves to cuddle.
Here's a pic.
Tell me what cha think!!