Sailhack said..^^^ That's a bit off-topic, but happens. I'm a Level-3 rope technician (vertical rescue), have working at heights ticket & various others - but I don't have my rooftop safety, so I can't repair a loose roof tile (SES) or cut a branch from a rooftop (I have a chainsaw ticket too)...but I can lead a vertical rescue team in a very dangerous situation and personally go over the edge of a 50m cliff to do a rescue (but no climbing on roofs...mmkay?!) - it makes me smile sometimes.

had a job last week ,to clean out some gutters. plan was ,up the ladder with the blower,walk around edge of flattish roof, 20mins, done.
HOWEVER. . being a large important corporation , 4 people had a safety meeting, worked out the details for the JSERA,typed it out and sent off to head office for countersigning.
It was then agreed that I could stand on the platform with handrail attached, and cleanout the gutters by hand, with appropriate gloves.
1 hr later paperwork all done I get out the blower and they realize it isnt mentioned on the paperwork, more signing and countersigning.
1.5hrs later I get to the last bit where I have to stand on a verandah roof to pull weeds from the last bit, but no-one in the regional office can approvea working on roof clearance. so we just left it clogged.
next rain all the cleaned gutters flowed into the left bit and backflowed into the office.
whole job was 1hr tops until the paperboys got their hands on it