Do you need us to tell you this is a bad idea? That drinking 5,740 calories of sugary, green slurry is probably not good for you?
No? Good. With those warnings out of the way, you have to watch this:
That looks painful. But don't worry, Matt Stonie, the poor guy in this video, is a professional competitive eater. But even his highly tuned consumption skills were put to the test for this 7 Shamrock shake challenge. As he wrote on Twitter, "Note to Self: never exceed 1 gallon of dairy in one sitting again."