There's a way to spank your child and I see nothing wrong with doing it in public. It was done to me and look at how I turned out.
I remember getting spanked because I didn't want to hear what my mother had to say so I started humming the Sesame Street song. She checked it right there and we were riding down the street.....umm she didn't pull the car over either.
You can raise your children at home and they still get out in public and act in a way they know they shouldn't...they are children, it happens. I don't have any children but I always say check them where they try you. Want to act up in the store, you will get checked right there in the store. My neice knows that Aunt Afrochic don't play. I have stared at a plenty of mothers in disgust when their children holla Momma Momma Momma and then stomp kick fall on the floor because they don't get the ice cream.....check it right there or they will check you later and embarass you.