GREATEST FACEBOOK COMEBACK OF ALL TIME

A couple years ago I posted a picture talking about how arguing on the internet is retarded.  I remain firm on that point, but I still find it hilarious.  In the past two years the trolls have only gotten worse, honing the skills with which they piss off the masses.  Here is a case though where it's not even trolling, it's just one friend pissing off another, and it leads to the greatest comeback ever. Finally someone has found a way to end the most lame arguing technique ever.