COVID. People in semi house arrest mode deprived of social interaction forgot how to be decent human beings. Shortly after I left the US, I vividly recall reading the news about a 6yo shot dead in his mum's car by a road rager on the freeway, and wondered why I ever stayed in the US for so long. Dodging the Gilroy garlic festival shooting because I took over Sunday on-call for a teammate should've been the first sign.