Maybe it's different elsewhere but every college I applied to I wanted to go to. Between the essays, interviews, application fees, and entry requirements I wouldn't waste my time applying to a place I didn't want to get in to.

I've also cut an interview short once I realized it was a waste of time (H1b formality). If I'm not being taken seriously I won't take them seriously and I certainly won't waste my energy on fizzbuzz questions.