Why do I do it?

You know you shouldn't take your children to the grocery store when...

...a stranger in the produce aisle kindly taps you on the shoulder to tell you that your child is climbing out of the cart and is hanging precariously half on and half off.
...you turn around in the cracker aisle and notice your youngest child has a plastic produce bag over his head.
...you see both of your boys eating the ice from the inside of the meat cooler.
...you've said each of the following phrases at least a dozen times.
"stop goofing around"
"please stay close to me"
"in or out of the cart"
"you're not going to earn your cookie"
"no, we're not getting gum"
...and finally in the check out line, your youngest child doesn't hear your repeated requests join you and is too busy looking at the Viking paraphernalia to listen and then the sweet little lady behind you comments on how "busy" he is.

Yes this all happened in about 45 minutes. Why do I do it?