Who is responsible for the health and safety of their employees?
The employer.
The government.
Who is responsible for your health and safety while you are at work?
Your employer?
You?
If you see water on the floor should you clean it up or leave it for somebody else to clean up?
Leave it for somwbody else?
Clean it up?
What is a hazard?
Something which can not cause you harm?
Something which could cause you harm?
What is a risk?
That something will not happen?
That something could happen?