Do you get scared working with dangerous gases?

Question: Do you get scared working with dangerous gases?
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Asked by Willemily to Stuart on 9 Mar 2016.
- Stuart Atkinson answered on 9 Mar 2016:
  
  Absolutely. Many gases are toxic. But even some that you might think are harmless like carbon dioxide and nitrogen are very dangerous if they accumulate as they can push out the oxygen from a room and leave you unable to breathe.

Question: Do you get scared working with dangerous gases?