This one's about family, that's what makes it so powerful.
Happened a long time ago, I was around six or seven. One of my aunts was a stuck-up bitch getting high on her own farts, despite being only an elementary school teacher. Had a nanny visit once every week to teach her kids "proper etiquette fit for a young lady and a young gentleman" and shit for years. Anyway, I was visiting them, playing with my cousins, and she herself had some guests over. Time came for refreshments, so she fetched a fancy box from her cocktail cabinet, and said to me something along the lines of "I have no doubt in my mind this box your father gifted to me hides a bottle of high-quality wine, after all, it is so fancy, and the script looks Italian, and they make some great wine."
Gathers some glassware, opens the box, pop goes the cork, pours some wine for all her guests, gives a toast, they all have a sip together, and in the next moment, there's a fine red mist in the air over the table.
Stuck-up dumb bitch fancied herself a master chef, so my father brought her a bottle of indeed high quality balsamic vinegar, which she obviously forgot about.
I also have some stories about a high school classmate, who was a real jackass.
Dude decided to "prank the school doc", so he walks over to the doc's office, and goes "Help me doc, I have a real bad case of the shits today, I can't stop crapping, I've been shitting up the crapper all day".
Doc sitting there, stunned, the nurse replies "Well son, I think you have some bigger problems, so you had better apologize right now or else I'll get some bleach for that potty-mouth of yours."
Jackass can't get confrontational in fear of ruining his "ebin prank", so he mutters some apology. Cue "I CAN'T HEAR YOU, SONNY", so he squeezes out a proper apology, and starts over in a generally polite manner.
Doctor gets some kind of white suspension from the cabinet and starts explaining: "Yeah, I hope this helps, but if you REALLY have that bad of a diarrhea, you should go home and visit your GP."
Needless to say, that fucknugget didn't have anything of the sort, so that drug had him constipated for a week.