Just because they may have similar archetype, that doens't mean they're anywhere near the same quality.
[relevant] I worked at a nursing home too, once. Shit was fucking crazy (I cleaned aquariums in the unit that had all the really screwed up old people in it).
I was always creeped out by the really quiet ones. Once, one of them snuck up behind me once, and when I turned around and saw her, I screamed and jumped a foot in the air. Scary stuff. [/relevant]