One of the sites I run on my home web server is my baby photoblog for my friends and relatives.  I built it during the fantastic paternal leave Microsoft gives its employees (one month off at full pay!), and I am still actually really into it.  I recently put up an Atom feed (knowing full well that most of my relatives know nothing of Atom, let alone RSS).  Anyhow, one of the things I added was a little voting bar that you can click on to rate a baby picture on a scale from 1 to 5.  Naturally, I block you for rating a picture a 1 or a 2.  I mean, really, how dare someone rate my baby a 1 or a 2!  Today I noticed someone was rating my pictures a 3 and being understandably indignant did a whois lookup on the IP address of this fiend and found it coming from  Google?  I don't know anyone who works for Google.  I was perplexed.  Later, I was examining the IIS logs and discovered the hits coming from the GoogleBot.  A robot's non-conscious actions were evoking an emotional response in me.  Anyhow, I immediately added a robots.txt  with noindex instructions and am changing my code to rate using a POST instead of a GET.  To be fair, the GoogleBot was rating the same photos a 5, a 4, and then finally a 3.