I was tagged by recruiting at a school career day expo (though I wasn't a student at the time, just attending).

I was called about two weeks later and, since I was local, was brought in for an all-day interview. It started late morning.

I visited each office and was asked to whiteboard technical questions, explaining my thought processes as I did them. I was also asked about my experience shipping products or other theoretical "what would you do in such a situation" project management-like scenarios.

I was asked to create a particular algorithm for a hash table scenario. The scenario was confusing, and I didn't know how to even start. I was not given any clarification when I asked, just told to do it.

I did a regular hash table and could tell that wasn't what he wanted, but he just huffed and said we were done, and went to fetch the next interviewer.