A few weeks back I checked in for a flight with a friend and were issued boarding passes; mine was correct, but my friend Ms. Bamboo Field (in Japanese) had an unexpected sex-change operation plus a well-placed typo and turned into Mr. Hey, It's an Octopus.

This being a domestic flight in Indonesia, I don't think anybody even checked the boarding pass on the way to the plane though, much less started cross-referencing it against ID...