What makes Gandalf so mean?

We got Gandalf from the SPCA. He likes to rest on my bedridden dad's bed. He doesn't like being picked up, and he's real smart. He'll go limp if you attempt to pick him up, and it's more difficult to pick him up in that state. At other times, when you pick him up, he goes, "Meow???" and complains, then struggles out if you hold him too long, scratching you the the process. 

If he's doing something he's not supposed to do, such as eating paper or my mom's work, chewing wires, attempting to pull down my dad's spare breathing tubes, or balancing on the windowsill of our 17th story apartment, drinking toilet bowl water and scratching the furniture, we tell him "NO!" and spray him with water. He'll run away, then attempt to do it again. It's not that he doesn't know it's wrong, but he likes to aggravate us, just like how he likes to parade himself in front of dogs who are unable to do anything except bark behind a wall of glass at the vet. Some dogs are even afraid of Gandalf, though they're bigger than him. 

Photo submitted by: Kevin
Date last updated: 10/25/05