I have some slight paranoia and a few anxiety disorders and ho boy is it a trip. Sometimes even if I know something is really illogical and the chances of it happening are slim, I can't help but think "but it could happen and there is a chance of it happening right now oh no".
In Example: a while back when me a few of my friends went to see Wonder Woman in theaters, we all sat in the back row. Now this man came in and sat in the corner of the back row alone when there were other seats that were closer to the middle but not directly next to us available. He was kinda scruffy looking like he didn't take the best care of himself and honestly downright shady looking. Everyone else in the theater kind of ignored him, but he caught me and my friends' eyes. about 15 minutes later he gets up and leaves his nearly full bag of popcorn behind. Not too suspicious right? Well he never came back the entire movie, and as time went by the bag of popcorn kept nagging on our minds. It would have been rude to move the bag or throw it away incase he did come back, but our minds wouldn't have been able to rest had we done nothing. At different points of the movie we made excuses to leave and come back eyeing the bag on the way as we came back to our seats. I had my flashlight on so I could see where I was going, and kind of shone it in the bag briefly to make sure I didn't see anything fishy. I remember another friend of mine kind of picked it up slightly to make sure it didn't weigh like something heavy was actually in it. While we never expressed our concerned out loud to each other until outside the theater when the movie was over, we were all paranoid that shady and shabby guy was one of those domestic terrorists you here about in the news and that he had planted a bomb or something in that darn bag of popcorn. And even though I told myself that it was highly unlikely that the strange guy was a terrorist I just couldn't let it go, and I couldn't focus on the movie really until I was sure nothing was going to happen.