How the heck does this happen???

[Supermario]

I'm still trying to wrap my head around how something like this can happen?

A 400 ton rock truck is not a small machine. It's bigger than my house! Here's a pic and no, the guy isn't a midget, he's 5ft 10"





And yet, someone was moving one of these monsters out of the wash bay with the box up! How could you not see or remember the box is up!???




Estimated cost of washbay repairs at this remote site???..... $200,000