Sturm und Drang
I ran across this phrase today reading the U.S. News & World Report. The first thing that jumped out at me was how similar it looks and sounds to Durmstrang, the infamous wizard school, supposedly steeped in the dark arts. http://www.answers.com/topic/sturm-und-drang
Here is what Wikipedia has to say about it... http://en.wikipedia.org/wiki/Sturm_und_Drang
Interesting, in any case.
In my 'research', I am getting more and more vibes that Minnie McG is indeed, um.. not on our side. She was hired in December, 39 years before book 5. We know it was snowing when Tom applied. The Lexicon has her pegged as being a year ahead of Tom at school. She certainly could have been a follower of his. If he was all that crafty, he could have 'planted' her at the school, much the same way I think he 'planted' Hagrid there.
See, Tom knew he couldn't stay at Hogwarts. He asked Dippet and was told no. Then he runs across Dumbledore in the hall. Right after that, Tom hides in the potions classroom and waits for Hagrid to go visit Aragog. I can see the wheels turning... Dippet says no. Dumbledore is there. Dumbledore might have been known to have a soft spot for Hagrid even then. It is certainly alluded to. Tom figures that if he can't stay, why not plant one of his own henchmen?
Same thing a few years later... probably 11 or 12 years after he graduates. He comes to Dumbledore for a job. He doesn't get it, so he plants someone that he figures Dumbledore will accept.
Think about it. Minerva wasn't all that close to Dumbledore in the beginning of Bk1. She worked there for a long time before she became one of the 'inner circle'.
Sturm und drang.