used kitty litter in elevator

we have a jerk who on more than one occasion has let his bags of used kitty litter break in the elevator and besides not cleaning it up properly having no respect for anyone and not cleaning it up , he kicks it through the gap, into the elevator machinery.
He should pay for the expense of cleaning out the elevator trap and machinery, before the elevator breaks down and the shareholders get stuck for the bill and the residents get a loss of service.