I never sit normally.
I mean, when in restaurants and stuff, in public and whatnot, I do sit normally, I don't mind it, but when I'm at home or in P.E class at school or something I always feel the need to sit like this: http://www.narutobase.net/forums/picture.php?albumid=827&pictureid=22517
Even when I sit on chairs, I feel like I have to sit that way. idk why, but over the years I have always eaten, used the comp and watched TV like that.