As the sun began to set, Rex continued on his little outing, heading into a... seedier sort of neighborhood, judging by the abundance of bars. He hugged his coat tighter around himself, trying to keep warm while also projecting a sort of stand-offish image. Because he didn't want any... undesirable people to actually approach him. Sure, he was used to a life of crime-- and thus, the criminal element (which he totally assumed everybody here was) was something he was accustomed to, especially after two years on the Barge-- but his crime was sophisticated, damn it. He didn't want to mingle with any simple two-bit thugs.

...

It should be worth noting that Rex spent a great deal of his life in isolation.