Tried any chocolate tea lately? It's all the new craze!

This is how my order at sonic went one day a while back, verbatim:

Girl: Welcome to Sonic can I take your order?
Me: Yes can I have a large chocolate shake?
Girl: I'm sorry what?
Me: A large chocolate shake.
Girl: A large what?
Me: Chocolate shake.
Girl: A large tea?
Me: No, a chocolate shake.
Girl: A chocolate tea??
Me: Are you serious?
Girl: What?
Me: SHAKE!!
Girl: Oh ok sorry, I couldn't understand you.
Me: I didn't notice.