I had a couple of pet rats once, they had previously participated as controls in a science expt at a local college. They were designated incinerator material when I received them, and they lived out the rest of their lives with me. I have many stories of their uncanny abilities and intelligence, their differing personalities and tastes, but one in particular always amuses me when I think of it...
There was a very small room at one end of this apartment I was renting in which I frequently allowed the rats to run around free in when I was home. My roommate was graduating from law school at the time, and was on the phone at the other end of the apartment with one of his classmates discussing the upcoming graduation ceremony. His friend, a good natured and funny guy, albeit with a rather juvenile take on life, suggested that they hire a couple of hookers as escorts to the ceremony to shock the rest of their politically correct classmates. Just then the phone went dead. My roommate's friend thought that he had really stepped over the line this time, offending even his best friend with his salacious sense of humor...
The rats had eaten through the telephone wires.