John,
What am I doing to prevent future accidents?.
Well, lets see.
I usually work alone, but I always make sure that I have radio contact (or at least phone contact).
Now, down to it, preventing an accident in my line of work can mean as little as testing a pole to make sure you aren't going to be falling with the thing.
Same side of the coin, a big part of "accidents" here happen because some idiot couldn't be bothered going to the truck to get thier "Test Gear", or don't carry it with them.
If you are like that, pack up and go home, you shouldn't even be called an Electrician.
Before even setting the ladder against the pole, I check the ladder, doesn't take long, a few minutes at the most.
Next, If I'm working on HV stuff, I check my Modiewark tester on a known source of voltage.
It's all simple stuff guys, it sort of makes you wonder if there is some sort of a mind-block there.
Testing your own gear is good sense.
Please don't learn like a few others do.