No contestant shall leave the ring during any one minute rest period between rounds. Should any contestant fail or refuse to resume boxing when the timekeeper indicates the start of the next round, the referee may either disqualify that contestant or award a KO decision to his or her opponent as of the round which has last been finished, unless the circumstances indicate to the referee the requirement for investigation or punitive action, in which event the referee shall not give a decision and shall order withheld the purse or purses of either or both boxers.