A Sauce Of Confusion

(I am at a sandwich shop.)

Clerk: “What will it be?”

Me: “Footlong on white, please.”

Clerk: *butterflying the bread open* “Which meat?”

Me: “Before that, could you add some marinara on the bread?”

Clerk: *adds sauce only where the meat usually goes* “Sure, like this?”

Me: “Yes, for that side. Could you add the same to the other one?”

Clerk: *puzzled, flips the foot-long closed* “You mean on the crust?”