For real?
Yes, they’re assessing how high the elevators bounce from a dead drop from the 10th floor down the shaft. It seems to have caused a lot of excitement.
Btw, I’m just pulling your leg.☺
I can vouch for it. Was working on a fuel system on a Dallas high rise (down in the basement)and the Otis tech gave me a heads up . So I stopped working and waited... sure enough, not really a boom but it shook the floor down there. I’m sure it went all the way to the top.