Sabotage: postdoc fiddles with graduate student's cells
arstechnica.com
arstechnica.com
It happens all the time, too.
One of the reasons I shied away from academia is the nature of the workforce, and how you have to treat them to get tenure.
The fact that you can tell more stories about shady/mediocre postdocs vs. good ones is subjective. Many of today's professors preferred postponing their job to be postdocs somewhere else for a year or two.
I certainly think that being a postdoc can have great value (it did for me, and it did for everyone I know who eventually became a professor), but in practice it's a mixed bag and the structure of the situation produces mixed results.
But so are you as a professor, at least up to tenure. I agree it is a double edged sword. It is intuitive that a research community prefers to evaluate someone before offering him a tenure-track job.
PS The ratio postdocs/asst.prof can vary a lot. For example it was much lower than 10 in all of the departments I worked at, though not far from it in Europe.
http://news.ycombinator.com/item?id=1731459
The postdoc thought it was subtle enough to kill those cultures with ethanol, and thought everybody else wouldn't be clever enough to catch him. But the grad student was probably clever enough.
That said, there is such a thing as going too far, and to sabotage the work of others, literally tamper with, damage, and/or destroy it, definitely crosses that line.