You were out with you husband, shopping for your birthday. You told him you were going to check out the clothes aisle, and gave him a kiss before you left.

Once you were there, you saw a girl, also looking through the clothes. You notice her glancing at you, and you smiled every time.

"Using daddy's money, huh?"

The girl said, in a rude way, not trying to be kind at all

What do you reply with?