Just ONE simple rule*, and yet, every day, you have to do battle with some moron who just doesn’t get it. First some background. London’s Tube stations are underground (I think that’s where they got the term, The Underground). Sometimes, these stations are really really deep – maybe 65 meters underground. So if you want to board them you have to take stairs or an escalator. Often, you will get off one Line, and have to switch to a different Line, and then go down deeper, or go up, etc… So the one rule is “Stand on the Right.” That way, people who are late for a meeting at HSBC Headquarters can run up the escalator on the left side. But I swear, EVERY time there is some dummy standing away on the left. And some furious Brit (or seasoned Tube Traveler, like myself) trying to wedge him or herself between the Right Side stander and the guy on the Left Side and his 83 bags from Selfridges and Harrods.
* The statement that there is only one rule in London is patently false. There are many, many rules.