CIVIL COMMOTION. Lord Mansfield defines a civil commotion to be "an insurrection of the people for general purposes, though it may not amount to rebellion where there is an usurped power." 2 Marsh. lnsur. 793. In the printed proposals which are considered as making a part of the contract of insurance against fire, it is declared that the insurance company will not make good any loss happening by any civil commotion.