Going a little batty

I need to get my eyes checked.  Or maybe I just need a vacation from work.  Or maybe both.  I was logged in to a database at work, looking for which columns in which tables hold the data I need, and I saw a column called BATCHID.  No exaggeration – it took me a full 30 seconds to identify that column as “Batch ID”, not “bat child”.  I was sitting at my desk, almost scratching my head in confusion over why on EARTH we had a column to store data about bat children.  Was it a joke?  Did “BAT” stand for something and this is child data of some sort?  I’ve worked here for nearly five years – how could I have never heard of it?  Eventually, the light bulb came on, and now I feel stupid, but man – I was really puzzled for a bit there.