About two or so years ago (I would have been roughly 16), My school group took a trip to Germany, More specifically Munich. Lovely place, Awesome weather (It was winter and even snowed plus I obtained a Russiany furry hat). On one of the days we walked down from our hostel to the local Lidl. I was waiting in line at one point, And when I eventually bought my goods and left, I realised there was no-one else around. They had all left.
Even worse was that nobody even noticed they had left without me. Fun. Fun. Fun.