really stupid is building not safe 3rd rail. Stupid and cheap.
No. Stupid is thinking you know better. There are plenty warning signs, if one doesn't pay attention to them then the consequences are obvious.
There is few manners, well known over all world, to stop such accidents.
It's not clear what you are saying. But if you mean there are ways to stop such accidents... I agree. The first one would be not to urinate on the live rail.