I work in a café. Yesterday this happened:
Scrawny lady: You used to sell some kind of minced meat pasties, don’t you have them anymore?
Me: I’m sorry, but we don’t have them today.
Scrawny lady: Hmm I’ll have a cheese-roll then.
Me: *gives her the cheese-roll and also the coffee she orders*
Scrawny lady: *leaves to eat*
*about five minutes later she’s back* You didn’t warn me that there is ham in that cheese-roll! I’m a vegetarian!
Me: *blink* ehhh?
Scrawny lady: *snorts angrily and leaves*
So first you ask about minced meat pasties and then you are a vegetarian? Indeed.