The presence of obsessions or compulsions, or both, are what distinguishes obsessive-compulsive disorder from other conditions. The obsessions or compulsions cause marked distress, are time-consuming, and interfere with a person's normal functioning.
(1989) concluded that everyone excretes stinky compounds in their urine after eating asparagus, and the only variation is in ability to smell them. Other papers using chemical tests and carefully controlled smelling tests show that there is variation in excretion of sulfur compounds in urine after eating asparagus.
The ripe smell of asparagus crops up in a seemingly harmless way, but tell that to the guy sharing five bathroom stalls with five other men. Asparagus makes urine stink when the sulfur compound mercaptan breaks down in the digestive system.