[Sopater]

sometimes you just have to get their attention.

If you are swift, consistent, and precede it with a verbal warning, you only have to do it a few times.

[opus86]

Agreed, and then it should be carried out using a bare hand if possible.

[twigs]

I think 13 is old for physical discipline. I don't think the police have any business getting into this, but I just don't think it's the best way to handle this.

[colorado tanker]

If you are swift, consistent, and precede it with a verbal warning, you only have to do it a few times.

Yes. Once they understand this is a possibility, you almost never have to use it.