Another thread has brought up the 'blame game,' which seems to follow nearly every mishap.

In it's purest form, a supervisor directs a man to do something .... then denies giving the order when things go bad. These are, of course, the same folks who will question the competence of an electrician who doesn't want to work hot.

A more subtle form is the automatic conclusion "only an idiot would do THAT." Sometimes, this is institutionalized as automatic disciplinary action against anyone who gets hurt.
Both are really bad approaches; they only result in concealing accidents and inhibiting the free discourse that would allow all to learn from the event.

Finally, there are contradictory pressures on the job that often mitigate against safety. For example, on a prison job it simply "wasn't possible" to kill the power until someone actually was electrocuted; now, convinced of the danger, the administration suddenly figured out a way to let the power be killed.