Terrible. What other people do in their work time is none of your business, unless you're directly responsible for them, which does not seem to be the case here.
Um. If I was working at $16/hours or something and this girl was doing this and getting paid the same, I would definitely speak up. I don't know what world you live in, Vlado, but if you actually care about your job, you will speak up about issues within it.
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This is the Octillery that ISN'T joyrock.