Construction too. I peg my "I'm in danger" meter every time I go up in a scissor lift. Those lights/speakers/fire strobes/WAPs don't make it 30 feet up to your Walmart ceiling by themselves. Then there's the residential a-hole who wants a camera at the apex of his roof on the third floor, so gotta break out the creaky old sun-bleached 40-foot extension ladder and fuck around like Clark Griswold...