Mr. Mahesh Haridas
I give my points of opinion on the example.
Understanding Wheel Chocks
If I am correct, a wheel chock is a wedge of sturdy, durable material used to prevent the accidental movement of a vehicle. If a chock is provided, made available, and user-friendly, and the operator has been well instructed or trained to use it when parking, then it would not amount to an unsafe act. If the chock is not available for the operator to use when needed, then the condition is unsafe. If the chock is too heavy for the operator to lift or is not user-friendly, or if no supervisor or co-workers insist on or follow it as a procedure in the organization, then it would amount to a failure in safety procedures, and the system is responsible.
Analyzing Lift Truck Incidents
"Lift truck is driven into truck trailer and trailer moves" is also, when analyzed, you will be surprised to find that either the lift truck driver is not trained properly or the lift truck braking system is not working properly. Though you may call it a "near miss," it could soon end up as a major incident since this is a procedure and system failure. Checking the tools is not done periodically as per the written procedure.
Driver Safety Concerns
"Driver jumps to the ground and sprains his ankle" may be due to the height or size of the operator. An additional step or supporting structure, if required, should be provided for getting in and out. This can be found out through observation of the procedure. The system is responsible.
In all the above cases, if you go into the details or observation, you will find that the worker or operator cannot be held responsible. As responsible management, it becomes their responsibility to provide a safe procedure, environment, and culture for the safe working of operators and workmen.