You can't just put me on the spot like that! I'm not a dancing monkey.
If you're looking for a joke the best I have is one about a blonde a brunette and a red head all talking about their kids and another one about zombies that a five year old told me while I was having breakfast this morning.
If you're looking for a colorful and/or witty rejoinder you're going to need to wait for the time to be right.