You what?!?!?!

Recap of a conversation between my wife and the girl building her sandwich at Subway the other day:

Misha: "Can you also add some avocado to my sandwich?"
SubwayChick : "I don't know what that is..."
Misha: "... Avocado? ..."
SubwayChick: " "I don't know what that is..."

Excuse me while I cry...