Answers
Actors performing on a rooftop
Camera crew on a raised platform
Uneven ground on location
Using equipment near water
Carrying lighting rigs by hand
Faulty wiring in a broadcast vehicle
Loose flooring on set
Shifting set pieces without help
Overloaded power sockets
Lighting technician up a ladder
Lifting a camera case alone
Cables running across the floor
Damaged insulation on a cable
Loading a generator into a van
Set builders on scaffolding
Dolly tracks left in a walkway