Selling whistles to German ravers

Perhaps to escape from our current alarming situation, I’ve found myself reliving a time in my life which was as different to the reality of these past months as it is possible to be. It involves travel, massive crowds, sharing whistles and no hand sanitizer. Berlin, 1998 (Wikimedia Commons). Count the whistles. In the carefree 1990s, I was coming to the end of a year backpacking and working...