Rats are capable of complex behavior, but let's be real, they're all just a bunch of weirdos. Like the time I saw a rat try to "help" me with a puzzle. It kept spinning around in circles, making a lot of noise, and generally just being a nuisance. It was like it thought it was some kind of furry little consultant.
Rat Behavior Patterns: A Study in Furry Futility
Advanced Rat Hacking: Because Who Needs a Social Life?
The Sociology of Rats: They're Just Like Us, But Smaller and More Rodent-y