During his time at Arizona State, Kush was known for being one of the most physically demanding coaches in the game. He was notorious for abusing his players both physically and emotionally. His daily football practices in the heat of the Arizona desert are still the stuff of legend today. One of his drills was known as "Bull in the Ring", whereupon he would have the players form a circle. He would put a player in the middle (most often, a player he felt needed "motivation"), call out a uniform number, and blow his whistle. That player would charge the player in the middle and the two would engage in contact until Kush blew the whistle again. Whichever of the two players gave the best effort would go back to the circle, while the player "dogging it" would stay in until Kush decided he could quit. Former NFL and Arizona State player Curley Culp once broke a teammate's facemask during this drill.