John Hackworth remembers the incident with instant clarity.
It was the spring of 2012, and he was an assistant with the Philadelphia Union in MLS, but he was also taking time out to coach his son's youth team. It was a typical weekend youth tournament, with two games on a Saturday, another on Sunday morning and possibly a final that afternoon. As such, he decided to spread out the playing time on Saturday and make sure every kid started at least one game. That didn't sit well with one parent.
"In between games, I had a mom go ballistic on me because her son didn't start in the game," said Hackworth, now the director of coaching with MLS expansion side St.