Workers are often pushed to do things that maybe they should not.  However, most of the great works of man were created by nameless "heros" doing these dangerous jobs.  

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Today however, we have much better worker protection and while many a dangerous job that MUST be done gets done, 
many that could be done mush safer are.  Today it is rare to go into a machine, fabrication or welding shop and see 
workers wearing an eye-patch where they lost and eye, have missing fingers or toes.  
However, these sights were not unusual a couple generations ago.  
Workers that looked like extras from a pirate movie were common in the shops of the 1960's and up into the 1970's.