I tend to order for groups rather than just myself, so I definitely get a bit of extra sauces and stuff on the side for people. Although I love the people that eat the breadstick and then don't like the crust, I have a few friends like that.
Yeah, that's part of why I don't really care for thin crust in small doses, it's not very filling. That and deep dish, when done right is nice and fluffy.