Strike...closed doors...prison....what's the problem?
It does sound like your concerns are valid. Also, my answer (above) was somewhat braod, as your issue is one that may apply to many different working environments.
A little off-topic, but here is an example of when my own ignorance led to my having unnecessary concerns:
I learned the trade in Chicago, in an industrial environment. All the air lines were of steel pipe. I come to Reno, and what do I find? Copper air lines. Different? Sure is. Legal? Turns out it is, and seems to work well. Had I run about screaming "the sky is falling," I would have made a fool of myself.
