Anyone who comes to Tokyo and rides the train will be well aware of the copious amount of snoozing that goes on. I've always been amazed at how many people do it and how easily they do it. There is often a lot of head-lolling and you never know when you might get a sleepy stranger's head veering towards your shoulder. This is why September's morality poster is so fitting....and very cute too. The caption reads "Please be careful not to lean against the person sitting next to you should you fall asleep".