My biggest quirk? I hate spiral staircases. Especially see through ones
That reminds me of something I have a hard time with: Large mirrors in public. I have a hard time telling if I am looking at a solid mirror or a clear walking path. As an example, many department stores will wrap the support columns in tall mirrors. The result is that I can't tell if the space is solid or a clear walking path. I have been known to walk right into them.
Sometimes when I am out shopping I literally have to stop for a moment to look closely to see if I am about to walk into a mirror or not.