A 'Larry David moment'

Since rewatching the Larry David show 'Curb Your Enthusiasm' recently I have come across many instances commonly known as 'Larry David moments', when a ordinary normal situation eventually turns out to be one giant headache to sort out. However, there are other times, again there are many examples in the show, when Larry can't quite get why certain people act in the way that they do. Next time you go out to town, do the shopping, or take a run in the car, you are bound to meet some of these morons, who tend to do things that really annoy you.
Such a moment happened to my eldest son, Simon, this morning. Simon recently turned 18 and is quite a big built lad, and has no trouble passing himself for 20 actually. He popped out to get a Playstation magazine at our local Co-op here in Rhos-on-sea, but came back empty handed because a checkout assistant insisted on seeing proof of identity! This particular magazine is a popular one with kids obviously being a game console mag and I would imagine that kids of the age range between 10-18 would want to buy it. He could not believe that this woman had refused to sell him the magazine, so I said, come on let's go back. I want to see this! Simon picked his mag and went to the counter and was duly asked for his ID again. I was loitering trying to pretend I was not with Simon, but chipped in, "You do know that magazine is rated 15 don't you?" She replied that she has to ask because it's more than her job's worth. I said, " Yea, but you can see he's over 15, can't you?" It's policy, she said. So, you have to ask all the kids for ID before they can buy magazines now?, I said. Yes was the reply. So there you have it, if a magazine is a 12 rating, then all the 10 - 13 year olds have to show proof of age now. How many kids of that age carry ID cards? Not many. I have no problem if there is reasonable doubt in regards to someone who looks borderline, but if she thinks Simon wasn't even 15 years old today, she needs her eyes tested!