Prior to having a formal, company-wide Electrical Safety Program one of our experienced (qualified?) electricians was killed by an arc flash. While re-installing a modified bucket back into the MCC, a short circuit occurred (the bucket breaker was shut off, but replacement screws through the back were longer than the originals and contacted the bus) and after lingering for 4 days, the worker died. This prompted the implementation of the program which, among other things, addresses arc flash. As I stated ealier, I don't think that this type of hazard has been adequately addressed in the past.
Bryan,
Is it just my perception, or have flash-hazards just become more aggressively addressed in main stream electrical safety over the past 5-10 years.

BTW,
I know an argument can be made about field-modification of equipment.