Should be a law regarding sale of junk food Imagine going through any checkout and as soon as the cashier rings in anything high in sugar or bad fats/empty calories, a message pops up, similar to must be over 19 to smoke, and the buyer must step on a weight scale and provide height information. If the bmi is not within the healthy range, nope. No junk for fatty   Bonus: the scale light would be large enough for other guests to see. Obviously there would some way around high bmi due to muscles (and not the "squishy" kind)