They are changing out the steam generators at Sequoah nuclear plant. They have cut a hole in the roof, built a crane inside containment on top of the missle shields, drained the fluid from one radioactive steam generator, installed 4 jlg mobile platforms on top of the existing polar crane on the roof (a osha violation), built one of the worlds largest cranes outside (monster), got a very large lebeur crane on the other side and fixing to lift with the large one.
This morning they informed me I would have to work inside the tin can (containment) while they lifted out through the hole in the roof, It has about 2 inches clearance on both sides of the hole they cut.
After careful calculations of the wall deflection distance neccessary to bring down the polar crane from the ceiling rail road track I got sick and came home. (would smash people like bugs) I am now watching the news.
Yes it is like a circus.
what does this have to do with machine shop practises? Be safe and live to cut more chips. Don't do stupid things that are a calculated risk if you don't like the odds.