Yesterday on my commute I saw a lady on one side of the tube cough. A bit of phlegm projected from her uncovered mouth and landed on the jeans of the guy sitting opposite. Everyone one the tube (understandably including jeans guy) was horrified. But the plague infested woman didn’t even know what had happened as she was too involved with her game of Fruit Ninja.
Forgive me if I don’t include a photo on this occasion.