I have this thing about only eating foods that taste good, and don't make me vomit from the smell or taste.
"potatoes, rosemary, garlic & Gorgonzola" on a pizza? My boss at the pizza place said back in the 80's when kids would come in and try to order pineapple and ham, "Get the eff outta hea"... Then he would turn to me and say "what's next, freakin jellybeans on a pizza!"
I'm a purist, Pepperoni, Black Olives, and occasionally sausage.