Pineapple on pizza:
-Everyone's heard it already.
-Barely controversial.
-A perfectly fine choice, but we've noticed most people that like pineapple on pizza almost exclusively get pineapple on pizza; what's up with that?

Eating pizza crust first:
-Who? What?
-Practically nobody does this.
-Okay, but do you really want your last bite of pizza to be the crust? Doesn't it make more sense to end on a more savory note?