[mekkkkkk]

But it's the clients fault for trying to communicate with a teapot. There's nothing wrong inside the teapot. You just tried to communicate with a teapot. That's silly. Here's a 418 for you.

[OJFord]

Again, yes, I am not saying 418 is wrong to be 4xx, I am including it in 'the entire 4xx range are client errors'.