At a place I worked a Colonel came in to give a pep talk about the IED work we were doing. He was talking about his time in Iraq/Afghanistan: he was in a jeep and his driver was killed by an IED. A few years later his jeep was again blown up by an IED, and his driver was killed.
My takeaway was: don't drive with this guy.
There was an article a few years ago about people that buy products that fail. They bought an IBM PC Jr, a Coleco Adam, the Zune, etc. They are like toxic customers...not that they're bad customers, just they choose products that die in the market. They're basically negative influencers.
I never thought there'd be employees like that, but I'm wrong.