Quoting That-Girl:" I think that resorting to violence in any situation is the wrong choice. Period. Why are we not allowed ... [snip!] ... they were not being properly supervised, and if a child is expressing curiosty we need to provide an effective outlet for that."
Children do dangerous things something even when they're being properly supervised.
Like one time DS and I were walking across a busy parking lot. I was holding his hand. Before I could react, he yanked his hand from mine and darted out in front of a car. Thankfully the driver was paying attention and stopped.
You better believe DS got a spanking for that.