The Stable Boy Situation

This young scalawag has gone from straw-behind-the-ears neophyte to a raging Don Rickles wannabe. Though I am want to guffaw at some of his more outlandish insults, proper office deportment behooves me to censure the lout. Oh, and I know that such will only spur him on to even more incendiary heights of approbation, or whatever. But what else can I do? I can't very well 'take out the trash' as Gabrielle DePlancher suggests, can I? The landfill c'est la vie done gangland fashion is not a viable option ... is it? I'll be awaiting your advice in the comments section of this posting. Maybe a knee capping to slow the rascal down, as Boligard suggested somewheres in the Rump.