Still the best error code on the Internet:
2.3.2 418 I’m a teapot
Any attempt to brew coffee with a teapot should result in the error
code “418 I’m a teapot”. The resulting entity body MAY be short and
While I have to agree, “lp0 on fire,” “values of beta will give rise to dom!” and “user is not a typewriter” are all up there too.