-> Just a matter of being aware that fan blades can and do fly off
-> so don't stand in the line-of-fire. Leaning over a running
-> engine from the front of the car is a mistake or standing in
-> line with the fan when next to the engine is a mistake.
-> Reaching into a running engine and getting tangled in the belts
-> would also be a mistake. ;-) 

 With the modern Plastic fans and tight shroud to maximise air flow
through the radiator the hazzard is decreased some. But for Some opening
the hood is a Mistake. BUT that is what keps mechanics feeding the
family and placing a roof over theri Heads!!  :-)
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