While having a real case of OCD is not something to joke about, everyone has some OCD tendencies inside of them. Seeing boxes lined up perfectly on a shelf makes your brain happy, but if you see one askew, it could trigger your need to see everything look perfect. We expect to see things like tiles on a floor to match up and be set in a perfect pattern. One piece out of place can drive us crazy. Here are some more examples of things that can really trigger the OCD in everyone.