How does this not happen every day?

NATICK, Mass. - A child's birthday party at a Chuck E. Cheese restaurant was cut short after a fight broke out between two mothers. Natick police said the mom of the 9-year-old birthday boy apparently became enraged because the other woman's son was "hogging" an arcade game.

Sgt. Paul Thompson said Catherine Aliaga, 38, and Tarsha Williams, 33, both of Boston, would be summoned into court to answer charges of simple assault and battery stemming from the scuffle.

Thompson told the MetroWest Daily News that police received a number of 911 calls about the fight Saturday night.

He said what started as a birthday celebration turned into a "birthday melee."