What's your best advice to keep people safe?

A teenager was taken to the University of Michigan Trauma Burn Center following an accident in Troy on Monday afternoon.

A man was burned when he was using gas to help burn weeds: http://troy.patch.com/groups/police-and-fire/p/teenager-burned-in-troy-gasoline-fire

Have you ever been injured or nearly injured in some kind of accident? What's your best advice to keep people safe?