A few months ago I saw a thatcher working on a ladder that was laid on the roof. The foot of the ladder was on the roof of the thatcher's van. There was a work platform and ladder "fixing" attached to the roof.
Personally I feel that a slightly precarious working location makes one look out for one's own safety while a "totally safe" working location allows ( encourages ) one to pay less attention to safety.
Provided the risk assessors have identified and provided for every possible hazard then their "totally safe" working location may be possible.
Personally I prefer to protect myself and not rely on some one else to be 100% accurate.
Personally I feel that a slightly precarious working location makes one look out for one's own safety while a "totally safe" working location allows ( encourages ) one to pay less attention to safety.
Provided the risk assessors have identified and provided for every possible hazard then their "totally safe" working location may be possible.
Personally I prefer to protect myself and not rely on some one else to be 100% accurate.