Not if you give all the shooters several rounds and semi-auto rifles. Hanging actually requires careful mathemateics to ensure you quickly break the condemned's knock without decapitating him.
Hell with that, just kick the chair out from under them and walk away.
In a just world, yes. But there's that whole "cruel and unusual" thing in the way.
^Also make sure brats who like to cause trouble watch to make it clear where they are headed if they keep messing with the law.