Sumultaneous Cautions to Coaches

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Last night I saw a first. My son's V game was played on a football/soccer combo field (Yuck!) with players and coaches on opposite sides of the field. Dual system of officiating. Home coach on far side is screaming at his near official about non-calls against blue. At same time visiting coach is screaming at his near official about non calls against white. While V coach is bending the ear of his near official, far side gives a yellow to home coach. Unaware of what is happening, visiting coach doesn't shut up and questions his near official a bit too much and also gets a yellow. Ever seen dissent on both benches with 30 seconds of each other?