I have to stand on more odd numbered steps than even numbered, if I stand on more even then I'll usually run back the way I came standing only on odd numbers before going back the way I was originally wanting to go, I've genuinely tried standing on more even numbered steps but I can't bring myself to do it. Another one I have is if one finger cracks I have to crack all my other fingers and thumbs and I wont stop until they have been cracked. I have lots of other small ones as well. I guess I'm just crazy.