Do I know you?

I came in to work this morning, and ran across an impromptu manager's meeting in the hallway. Among other things, I learn, one of our testing machines had broken, and can't be fixed for several weeks. One of our customers generously agreed to let us use their machine, and we sent someone over with an order of parts.

When our employee finished his tests, he had to wait for his ride (our truck driver). While reading the newspaper, he was reprimanded three times (by three different employees of the customer) for slacking off.

We teased him that we were too easy on him at my company, so the unfair criticism at our customer balanced that out. But still, how weird that multiple people would assume a stranger was under their supervision.