The thing is, though, what he puts in it is random and arbitrary, and he could've just easily added more stuff to it to make it an even more expensive drink. So what's the point? Especially when it's just going to taste gross?
We don't know! LOLz!
What we do know is that he filmed it (above), so you'd have more proof than just a receipt. It just seems like an obnoxious thing to do to hardworking baristas, especially for a title that is easily broken. When it comes to breaking records, it should take more than just asking for one more thing, and how much money you have in your pocket!