Being Me about looking up how to pick a lock (for plotting purposes!).
For the book I've just written I had to research how to vandalise a building site (scary but interesting), spells for bringing back the dead (and one for making them be dead again - which fyi are much harder to find) and the de-composure rate of corpses. I have been building myself up to approaching a local undertaker and planning officer - and I don't know which one is the scarier prospect!
And this doesn't include all the stuff that you click on by accident ("...officer"). A friend of mine was looking doing some research about land contaminated with heavy metals. She was quite surprised to be faced with Slipknot and Black Sabbath.
I suppose we must all be keeping 'the authorities' busy - they must have us under surveillance by now. *whistles innocently*.
What's the weirdest thing you've ever found yourself Googling?