"TEACH THEM A LESSON"?
What "lesson" is doing any of that to a toddler or even a child? How to be a classless sod?
It would be much better to teach their children good manners, how to make their beds, and cook a few simple dishes and I don't mean toddlers, but a child as young as 4 is fully able to learn how to set a table and do very simple chores, with older children being taught other valuable things (at each appropriate age), such as starting a saving account at 6, how to iron around 10, etc.!
You’re off to a good start, if you are intending to keep responding to me for a week, like you’ve done every other time you decided to argue with me about something. So, I don’t really expect this to be any different than any other time in the past or in the future.
Yes, teach them a lesson. Better to have one drink as a child and never again, than somebody who starts to drink at 18 and becomes a drunk, because he never learned to control himself at home.
There is as much value in what you see, while allowing them to banged up during childhood. Safetism is a problem in today’s world and starts with never allowing the child to have slightly harmeful experiences along the way.