Like I said, what is normal to you... isn't to others. My roommates, and my ex gave me grief for wearing shower shoes in the tub even after I cleaned it. Same with the twizzlers, biting my lip part; etc. The only thing I've seen more frequent and my ex and I shared the same habit was sleeping with a fan on for the noise.
The thread is about weird habits, not OCD. Why he chose OCD as a title is stupid.