I can remember a ministerial servant back in the mid 90's standing up near the front of the hall with his son who was acting up and stomping done the middle of th aisle to take his son outside. He was removing his belt to beat the child as he was walking for everyone to see.
At the next visit he was recommended as an elder. I was the only one who objected. I am sure this is the kind of thing that varies depending on time and local custom but it was common and it was accepted.
The city overseer once cautioned the congregation about spanking their children in the parking lot for fear that a neighbor would call child protective services. Better to do it in your car!