If they take the P.... crush them like a bug... Destroy them and make it public.. Very public..
No, you've got it arse-about-face. It's praise in public, bollock in private.
And when 'bollocking', remember, shouting is only for parade squares and battlefields.
The best bollockings I've had were never the screaming in your face type of ones, but the low-key understated 'talking' bollockings; they were the most effective.