(2) In trains bound for enemy destinations, attendants should make life as uncomfortable as possible for passengers. See that the food is especially bad, take up tickets after midnight, call all station stops very loudly during the night, handle baggage as noisily as possible during the night, and so on. (3) See that the luggage of enemy personnel is mislaid or unloaded at the wrong stations. Switch address labels on enemy baggage. (4) Engineers should see that trains run slow or make unscheduled stops for plausible reasons. (b) Switches, Signals and Routing (1) Exchange wires in switchboards containing signals and switches, so that they connect to the wrong terminals. (2) Loosen push-rods so that signal arms do not work; break signal lights; exchange the colored lenses on red and green lights. (3) Spread and spike switch points in the track so that they will not move, or place rocks or close-packed dirt between the switch points. (4) Sprinkle rock salt or ordinary salt profusely over the electrical connections of switch points and on the ground nearby. When it rains, the switch will be short-circuited. (5) See that cars are put on the wrong trains. Remove the labels from cars needing repair and put them on cars in good order. Leave couplings between cars as loose as possible. (c) Road-beds and Open Track (1) On a curve, take the bolts out of the tie-plates connecting to sections of the outside rail, and scoop away the gravel, cinders, or dirt for a few feet on each side of the connecting joint. (2) If by disconnecting the tie-plate at a joint and loosening sleeper nails on each side of the joint, it becomes possible to move a sections of rail, spread two sections of rail and drive a spike vertically between them. (d) Oil and Lubrication (1) See 5 b. (2) (b). (2) Squeeze lubricating pipes with pincers or dent them with hammers, so that the flow of oil is obstructed. (e) Cooling Systems (1) See 5 b (2) (c). (f) Gasoline and Oil Fuel (1) See 5 b (2) (d). (g) Electric Motors (1) See 5 b (2) (e) and (f). (h) Boilers (1) See 5 b (2) (h). (2) After inspection put heavy oil or tar in the engines’ boilers, or put half a kilogram of soft soap into the water in the tender. (i) Brakes and Miscellaneous (1) Engines should run at high speeds and use brakes excessively at curves and on downhill grades. (2) Punch holes in air-brake valves or water supply pipes. (3) In the last car of a passenger train or or a front car of a freight, remove the wadding from a journal box and replace it with oily rags. (7) _Transportation: Automotive_ (a) Roads. Damage to roads [(3) below] is slow, and therefore impractical as a D-day or near D-day activity. (1) Change sign posts at intersections and forks; the enemy will go the wrong way and it may be miles before he discovers his mistakes.