I suppose my biggest weird hangup is I always eat "worst to best". I eat the crust off of sandwiches first because it's my least favorite part, leaving the yummy, soft middle for last. If I have a plate of entrees, I'll eat my least favorite first, working my way to the best entree. If it's candy, like say Mike and Ike, it's the lemon first, followed by the lime, then the orange, then the strawberry, and finally the cherry. I always finish the fries before I start the burger. Baked potato before the steak. etc.
I think it's an obsessive delayed gratification thing.
It bugs me when I'm communally eating with people who eat "best to worst" (most people), because by the time I'm getting around to "best", it's usually gone since they ate it all first. At home, I'm almost always stuck eating end pieces because everyone else skips them.