Bench-clearing brawls do not occur very often in gridiron football. All levels of the game penalize any "substitute who leaves the team box during a fight" (as it is worded in the high school rule books) with automatic ejection and possible further sanctions depending on the league, and the amount of equipment a football player wears increases the risk for injury in a brawl greatly. In addition, on-field umpires and referees move in immediately to break up fights, and any contact by a team member against an official will draw the immediate penalty of ejection from the game, with further sanctions by league officials virtually certain, along with on-field penalties that move the ball closer or farther from the goal line depending on the team sanctioned, hurting the team's winning chances far more than in other sports. One notable brawl at the college level was between the University of Miami and Florida International University, where tough talk between the two crosstown schools escalated into a brawl with severe consequences for FIU.