Trying to "teach someone a lesson" never works
This. We occasionally have small wars of nerve with people over the crap they leave in their recycling box, and it's amazing how full of rubbish some boxes can get before we give in and tip the lot out into the dustbin. Or onto the garden, but we'd never do that, no, not ever...
Trying hard to think of some wisdom to share, and failing.
Except that catastrophe ends in an e.
Oh, actually, uses of vinegar - applying to wasp stings, to neutralise the alkalinity. For bee stings, use ammonia. To remember which - use A for B, use V for W.
Dock leaves will relieve nettle sting a little, but only because the juice released by crushing is moist and cooling. Any handful of leaves will do really. Except more nettle.