Yes - my experience with meth heads is that they can be perfectly normal in their interactions, but once high on meth they can be aggressive, obsessive compulsive and destructive. Granted, this can't only be blamed on meth (or drugs in general) - the person was obviously sober at some point during this trip - or at least sober enough to know what they were doing. This all seems like a planned out event to have fun with a couple of 8-balls and have a fun couple of days without worrying about what happened to the apartment in the end.