Holy Crap!

I'm a commercial HVAC guy, and years ago I worked for a manufacturer of VERY large equipment, and while doing some work on a 400 ton penthouse rooftop unit in Newton, Kansas, I was almost killed. It was summertime in Kansas, hotter than hell out, and I had my long sleeve shirt untucked and my sleeves rolled-up in an attempt to keep cool. My work-partner needed me to go inside the air tunnel to check (something, I don't recall exactly), and while I was walking in the 30" plenum space between the steam humidifier manifolds and the 54" plenum fans, my shirt tail started getting sucked into the intake of one of the fans. Scared the hell outta me, as there was enough force in the airstream that it damn near sucked me in there with it, had I been just "that" much slower in my reaction time.

I've never worn loose clothing around anything spinning from that day forward.