Checkout this....cause I need some advice!

So, I LOVE trips to Wal-Mart.  They are the highlight of my shopping experience.

(note my sarcasm please).

Picture me at Wal-Mart with my husband and 3 boys.  All we are buying is 3 packs of Kool-aid squeezes.  I am in line with all 4 boys, they are being good, including my husband.

Evan starts to run over to this really cool quarter machine that makes your money do tricks and you get nothing in return.  He just wants to look, Cooper takes off after him...a whole 3 feet away, so that he can boss Evan around.

Checkout Lady at Wal-Mart: "OH, and there's ANOTHER ONE!  Girl, you've got to put a stop to that."

(Meaning, I should NOT have anymore kids. Seriously, that's what she meant.)

Me: "Don't worry!"
(I manged to make my lip bleed trying not to bite her head off.)

Isn't it wonderful that checkout ladies know so much about family planning!?


I love my 3 sons!

So, the next time someone says something like that, what should I say? 
Give me some good ones please.
They are going in my "book".