I've seen upset SEOs and webmasters before but I don't believe I've seen such a public and outward display of physical threat on Google before.
A Google Webmaster Help thread has one upset SEO asking for the physical address of Googlers on the web spam team. He said the reason is he "knows a very angry group oF iNDIANS THAT WANT TO MEET UP WITH HIM FACE TO FACE."
Clearly he doesn't know what he is talking about because (1) there is no "him," there is a huge group of people on web spam at Google. (2) Google's web spam team is all over the world, including India. (3) For an SEO, you'd think they would find it easy to locate Google's offices. (4) He can't spell too well.
John Mueller, one of the faces behind Google's team was not concerned, he responded:
You can find our offices addresses on our website. That said, if you're unhappy with your site's performance in search, I'd recommend that you focus on your site, rather than our addresses.
I can't imagine the number of emails and threats Googlers get from webmasters. I get my share of threats and I don't even control Google's algorithm, so I can imagine the number of threats and insults Googlers receive on a daily basis.
Forum discussion at Google Webmaster Help.
Image credit to ShutterStock for physical threat