Waiter: Can I have your order?
Me: No, it’s mine!
Waiter: Can I have your order?
Me: No, it’s mine!
Alright, listen up buttercup. The person is being a smart aleck with the waiter. The waiter is asking to take the person's order so the kitchen can start cooking. But the person is pretending that the waiter is asking to have the actual food. I bet you're the kind of person who still uses Internet Explorer.