The funniest thing on the Internet

[cos]

It recently came to my attention that some people have never seen George's Tickets, aka the Chronicles of George, the worst helpdesk technician ever. Every couple of years I remember George's tickets and spend the next hour - or few - laughing. Someone on reddit posed the question, "what's the funniest thing you've ever seen on the Internet" so I was reminded once again.

What is the funniest thing you've seen on the Internet (aside from George's tickets)?