Up the airy mountain
Down the rushy glen,
We daren't go a-hunting,
For fear of little men
- From The Fairies, by William Allingham
And also beware on Warfield Street in Oakland. In this case, though, the little men themselves look full of fear, possibly because their buddies the trees got made into telephone poles (to the bottom of wich the little men are themselves attached - quite a number of them, in fact). Made my day, as you might imagine. As a thank you I wrote the Allingham quote on a little piece of paper which I bound with a gold tassel, then planted at the epicenter of the elfin infestation.