One of my delusions, involved my brother, his wife and my best friend and her family "Plotting against me" They planted listening devises in my home, and had people outside my house, at all hours watching me. I felt they had a network of people in place, to follow me everywhere.

I began removing all the wall sockets from my home and looking inside them for listening devises. I began video taping all the cars and people in front of my house. I'm sure my neighbors noticed me constantly peeking out windows and video taping things.

My husband would tell me my thinking was off. "Part" of me would listen to him, the other part was sure he just didn't know how awful people could be.

So yes, it's possible to have some insight into your delusion. I have a smidgen.