I was interviewed by Microsoft (Redmond) to work on Avalon (typography) last year. We couldn't do a personal interview because I live in the UK, so we opted for the phone option. I had three succesful phone interviews, HOWEVER, the fourth interview was
a complete disaster it lasted for nearly three hours (over the phone) and it finished at midnight (my local time). The fact that I was up am 6am on that day and the interview started half an hour after finishing work didn't help either.
Anyway, to cut the story short, I nearly fell asleep towards the end and I just couldn't wait for the interview to finish.... Alas, I didn't get the job (lack of OS development skills), but the whole thing was a unique experience!