I have an adorable Silky-Vixen rat calld Nickel and I love him to bits! but he's kind of weird when I handle him. He's constantly trying to run down my shirt, or sneak around the back of my neck, or get under my arm. Is this normal behavior? I have had no previous experience with rats so I don't know much.

Also, am I allowed to feed Nickel cheese? I remember reading somewhere that cheese can be harmful, but I'm not sure. Please help? Thankyew