Just to add to the comments by @jeffandann . This is a story I’ve told in previous similar discussions here:
Years ago, a friend of my D was attending a favorite school often discussed here. She worked occasionally as a server in a restaurant near campus. One night she was working, filling in for another server whose child was sick, and had a mom and her daughter in her station. They were both incredibly rude to this girl, the story is too long to go into here, but seriously rude people, both of them. The next day, my D’s friend was working at her school’s auditions and lo and behold, who shows up but mean mom and her even meaner daughter. I think you can probably guess what happened.
It’s not even a case of never knowing who is listening, more that if you’re not a nice person or if you are a jerk or a diva, people aren’t going to want to be around you/go to school with you/work with you/hire you, no matter how talented you might be.
http://talk.collegeconfidential.com/musical-theater-major/1612595-overheard-at-the-audition-p1.html
As to the interview, when my D auditioned at Tisch many years ago, they did interview the students. Hers was between 20-30 minutes. Does Tisch no longer do that?