All of my psychotic breaks came with terribly paranoid delusions, but I would say my last break was my worst.
Besides the usual, thinking people were hunting me down, trying to kill me, my behavior in the hospital must have come across as very strange due to the paranoia I was experiencing.
When I would walk down the hall to my room, I would very cautiously approach every corner, whipping my head to the side to see if anyone was there. When I got to my room I would open the door all the way (to be sure no one was behind it), then kick the drawers under my bed (to listen for movement, if someone was hiding in there), then kick the heat register for the same reason. It was ridiculous, no one could have fit in the drawers and what is the likelihood that someone removed the guts of the heat register and was hiding in it?
When I would sit in the common area with a beverage, I would keep my hand over the top of it, to be sure no one would poison it. I would take my disposable cup from around the middle of the stack, since I figured it was unlikely anyone brushed it with poison (as opposed to the cups at the ends). If I mistakenly left my hand off the top of my cup without my eyes on it, I would go dump my drink out, throw my cup away, get a new cup from the middle of the stack and get another drink.
Yeah, it was kinda weird. There was more to the paranoia, but this post is already long enough.
What would be an example of your worst paranoia?