Peeking over my Shoulder

For some reason, it bothers me when I'm working on my novel and people are looking over my shoulder. Or, at least I think they're looking over my shoulder. I'm not sure why this bothers me, but for some reason it's just something I can't stand. It's strange. I mean, as a writer, I base everything on other people reading my work. Therefore, being bothered by someone looking over my shoulder while I write really shouldn't bother me.

I think it partially may be because I'm worried that whoever...