Interviewer showed up, said he wasn't the usual guy and that the usual guy was too busy to interview. Then he said he was a C++ guy and this was a Java position, so he would instead ask me a question about inflating balls. He proceeded to spell out some kind of brain teasery type problem that maybe others are familiar with, but it was totally baffling to me, about inflating sports balls and trying to make sure they had the same amount of air in them, kind of had the same vibes as the glass-filling puzzle, but a bit more surreal. I tried my hand at it and then eventually said I have no idea what we're even doing or what it has to do with the job and we politely said farewells and I didn't get the job.