The other day, we got into a fairly extensive conversation about why Michele Bachmann might be classified as "Batshit Crazy". Well frankly, I kinda took that as a given without any need for further investigation. And so, apparently, do a lot of other people who do Google Searches. She features rather prominently in Google's suggestions when you begin by typing "batshit".
But here's the thing. While it's true that batshit certainly isn't very good for you and under certain conditions it can give you diseases -- even fatal ones -- I can't find anything that ties batshit in with crazyness. Or any other type of mental defect. Bats can be cute!
Fairly or not, they take the blame for a lot of stuff. But I really think we're stretching things a bit when we blame Ms. Bachmann's lunacy on them.