When I was gearing up for my internship interviews post-college, my SM advisor had me do some practice-run phone interviews to get pointers (and to get rid of my absolute terror of interviewing...)
One of the women I mock-interviewed with did something really interesting that I always remember now-- she intentionally did things to get me angry (cutting me off mid-sentence, being just-on-the-edge-of-rude, asking me questions that didn't make sense.) She told me afterwards when she was giving me her comments that that's something she often does when interviewing over the phone, just because it's so important for SM's to handle annoyance well and it lets you see past the "I'm interviewing" facade.
I'm not sure if that's common practice or not, but I'm sure doing it shows a lot about the interviewee!