Eating pizza crust first is a rebellious act that breaks social conventions unnecessarily.

“you like going against the grain you're rebellious you break the rules and you don't really care what people think I agree with the intern but you break rules that don't need to be broken”

Leaving the crust is an unfair practice that prevents others from sharing the full pizza experience.

“leave the crust errs are especially if you're sharing a pizza with them yeah are kind of being a holes because they're actually getting more of the good part of the pizza and I'm making a sacrifice by eating the crust”