HTTP Status 418: I’m a Teapot

After seeing this in Rack::Utils (my IDE even highlighted it because it’s the only one in double quotes):

HTTP_STATUS_CODES = {
      100  => 'Continue',
      101  => 'Switching Protocols',
...
      418  => "I'm a Teapot",
...
}

I had to look it up: http://tools.ietf.org/html/rfc2324

Thanks to laserlemon I can finally implement my fully web-controlled coffee pot with Sinatra on Rack!