Depending on construction deadlines and customer expectations, electricians are sometimes put into stressful situations in order to complete certain jobs or tasks faster than normal.
You're more likely to get cuts and bruises than anything else.
Electrical safety is paramount when working around electricity. Nowadays OSHA and every other safety board has mandated electrical safety programs be followed. Most things are to be worked on de-energized or off. The NFPA70E is the safety document most businesses follow these days which is great for us electricians. If the boss is in a hurry to get something done without turning off the power, you can just point to NFPA70E and say no.
So reality is not that dangerous if you follow the protocols and don't take shortcuts