Actually I did resort to this with occasional ... uh, physical trauma. I rarely spanked & was probably more of swats, but a really good flip on the head I found was only needed once or possibly twice. There after I only had to ask if they remembered that flip, how it felt, and if they wanted another ... draws far less attention in public also.
And, depending on the kid, when they were acting up in public it worked well to point out to them that *everyone* is watching them. hahaha This was the most fun (for me) because they immediately stop & start looking around. I think they forgot what the problem was at that point. :biggrin: