Split Second Insanity

I acknowledged today that
every time I'm on the subway or walking down the street
and I see someone having an animated conversation with the voices in their head,
I do the briefest of double checks--
Wondering if someone is really there holding up the second half of that conversation, and I don't see them.
(Which would make me the one with perception of reality issues.)
It happens so quickly, barely a glimmer of thought, but I still do it.
Every time.
Lingering effects of working as a psych nurse for a summer, I think.