Back in the UK for a couple of days. A brief ecstasy of courtesy today in the supermarket. An aisle was momentarily blocked either side by large stacking trolleys with enough space for one person to pass through the middle. Four people, I one, were behind the trolleys and all stepped forward at the same moment to pass through. We all stopped as one, and as one offered everyone else to go first. We then all laughed nervously, then looked around for who most deserved to go through first; an old woman. Three of us then, again simultaneously, gestured to her, she passed, and the remaining three then did the same again, offering the younger woman to pass, before the younger man allowed me through. I was so happy about all this I went on to recommend a brand of cereal to an indecisive mother.