Ostridge Syndrome

I don't know if that's the actual name for it. I don't know if it's actually a "syndrome" for that matter. Hell, I'm not even sure if I spelled "ostridge" right. But the movie Clerks turned me on to the concept: If I can't see it, it isn't there. I think tonight I realized that I subscribe to that belief more often than I might've thought, and there's one big problem with it: Sometimes, you do see, and then it is there. ... And what then?