My husband and I run a day care center and we need some help controlling the
kids. They keep going out of the yard into traffic and it's really getting
to be a big problem. Somebody almost wrecked there car yesterday and
threatened to sue us. We were thinking about that invisible electric fence
that you see all the time. A few questions:

Will the shock collars fit onto the necks of the children, the problem ones
are all under the age of 10?

Can the shock be turned up so that the kids won't get used to it?

Can the collars be locked in place so that something with an opposable thumb
cannot remove them?

Will the collars leave any marks from where they get shocked?

We need collars for about 15 kids how much would that cost?

Thanks for any help. We're really getting tired of having to watch them all
the time and beat them with rubber hose when they misbehave my husband threw
his shoulder out the other day doing it.