Is there something I can say to encourage them to sit on their own side during the game, or do good manners dictate that I just sit silently by?

A soccer parent writes that supporters of the other team broke decorum, then started causing trouble at a game. Plus, how to acknowledge the grief of a friend from a war-torn country.

During our last game, half of the parents from the other team elected to sit behind our team so they could enjoy the sunshine, as their side was in shade. They then proceeded to m