Much like this:
He's limping again too. It's not serious, it comes and goes once in a while. He'll just stop using his one back foot for a day or two. It doesn't look any different from his other foot, and he doesn't act like it hurts when i poke it.
I've been thinking about getting him a hetero life partner to ease the boredom of his days alone, and to curl up with during the long Vermont winters. Anybody successfully introduce new rats to a spoiled male rat of roughly 1 year of age?
I can just see me at the petstore: "excuse me, my rat needs to snorfle your rats to see if there is a potential hetero life partner among them."