As Captain America says: LANGUAGE.
According to The Sun, the fight, which took place on Saturday, broke out between the family members after a woman spit in a man's face, prompting him to start slapping her. This then forced the woman’s husband to jump in and the two men exchanged punches while their children and bystanders watched in horror. The fight took place at Disneyland's Toontown park in Anaheim, California.
Listen, you shouldn't be spitting in ANYONE'S face, so I'd be mad too. You also shouldn't smack someone in the face. ESPECIALLY AT THE HAPPIEST PLACE ON EARTH.
But alas, it happened.