R.I. Gen. Laws § 39-7-4: Passenger cars not to be followed by cars loaded with dirt or stone.

No car or carriage for the transportation of passengers over any railroad shall be propelled on the railroad when placed between the locomotive and cars loaded with dirt or stone. Every railroad corporation upon whose railroad shall be propelled cars or carriages for the transportation of passengers, so placed, shall be fined five hundred dollars ($500), one-half (½) thereof to the use of the complainant and one-half (½) thereof to the use of the state.