Offended by a Robot

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.com. 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.