Actually IMHO, what kills and injures professional electricians is complacency.
The old idea that you've done all this before, can get you in real trouble.
I happened to be reading the latest release of Electrical accidents published by our electrical safety authority here and the stats don't make for good reading from an actual safety point of view, 85% of all electrical accidents in the trade were caused by "Failure to isolate live equipment" and "Failure to test for presence of voltage after isolation"
3 electricians lost their lives in a 6 month period because of these basic things.
Sure I have worked live before, but I only do it when there is no other alternative and that would be a pretty rare occurence, there is no need to work live if you don't have to, it doesn't make you a "cut above" any other electrician, that doesn't.
It's all about coming home from work with the same things you went to work with.
