Yep, they sure do, I know of plenty of IBEW Electricians that have work on the job for 30 years and or more and still get shocked about once every 5 years. .......................
I really liked one of the first safety lessons I every got as an electrician, working on panels and doing tie-ins. The guy teaching me said, " and after you get the cover off you put your left hand in your pocket."
Of course I said, "why?"
"That way if you touch something you shouldn't they won't have to go looking for you fingertips when they get blown off.", he answered.
Ok , it would take a heckuva jolt to blown your fingers off, but everytime I open a panel, my left hand goes into a pocket, or behind my back.