Will the newbie never learn?

How embarrassing!  Shadow, the newbie from (well you can guess, right) has begun to truly do things that the rest of the house are finding very embarrassing, and, to be honest, distasteful.  For instance:  just the other day he was caught sleeping in the cover of the trash can.  Yes, sadly they caught him in there sleeping away the afternoon like he was in a fancy golden bed or something.  They tried to get him up, but he just snoozed on totally oblivious of their shame.  How could he?  Will he never learn?