Surely this is just natural selection working it's will? The passerby clearly prevented natural selection from working and now this guy who is clearly too stupid to survive without assistance will end up spreading his DNA and creating more stupid people. This is why I keep arguing that computer viruses should be more explosive / deadly. We'd be rid of almost all malware in a few years - because the idiots who don't know any better - wouldn't be around to click on "your media player is out of date, click here to upgrade it" or "while you were sitting here innocently surfing the web, we scanned your computer magically without installing any software to do it, and we discovered you had 99 bazillion problems, but because we are so nice we are going to let you click here and download our super amazing virus exterminator 2099 software to clean up your machine, aren't we nice? We have absolutely no ulterior motives for getting you to download this!"
While we are at it actually, we should also have a cull on ANYONE on Facebook who reshares crap that a quick Google will reveal to be bollocks. Like "if you cut an onion in half and leave it in your room overnight it will absorb all the germs in the air and stop you getting sick, but because of this magical property of onions, you must never eat an onion that has been cut in half for more than a day - or you will die" or my personal favourite "blah blah blah, dire consequences, look snopes.com has confirmed this to be true" - with an included link to the article on snopes.com that confirms it to be false, but everyone still bloody reshares it anyway!