Suspicious

A kitty that looks suspiciously like Brother has been spotted lurking down the street.  Does anyone think it could be him?  And if it is, what could he be up to, because we're sure he isn't there because he has decided to become a good feline and move back in.  What if he heard about that shark we are hoping to adopt and is lurking about, planning to intercept him when he arrives?  Sharks are fish, right, and cats eat fish!  What if he's planning to eat our new shark sibling?