Visible crew/equipment: When all the guys get back to Station 51 and walk quietly to see the cat on Johnny's bed, the actor's black tape mark is visible on the floor beside the bed.
Visible crew/equipment: During the boating accident rescue, the outlines of the mic transmitters and wires are visible on the backs of both Johnny's and Roy's shirts, on their right sides.
Visible crew/equipment: When Roy gets the little girl, Angie, out of the wrecked airplane and then places her in the Stokes basket, the outlines of the mic transmitter and wire are visible on the back of his shirt.
Visible crew/equipment: When Johnny works on the woman in the airplane wreck and says that he'll get the radio, and then when Johnny gets into the ambulance with Angie, the outline of the mic transmitter is visible on the back of his shirt. Additionally, while Angie's mom is being loaded onto the ambulance, the outline of the mic transmitter is visible on the side of Angie's top.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
stiiggy