 But people check a whole bunch of other things, like they may check whether or not they've accidentally hit somebody with their car, and they may drive back to retrace their steps. People may check their hands to make sure that they've washed them adequately. They may check other people. It ends up occupying a tremendous amount of time. The concept of it being just based on excessive precision and orderliness is really a reference to a different problem. It's called obsessive compulsive personality, which sometimes overlaps with OCD.