If they sounded drunk or crazy or were screaming at their kids or calling me from a loud party, I made a note in a notebook as to why they were denied, and I didn't call them back.When I was ready, I'd sit down with my notebook and call them back in order received.  

Sometimes I chose just from the voicemail to deny them without even showing the unit to them - they were screaming obscenities at their kids in the background, or they were obviously drunk at a bar with a band in the background (not the time or place to do business with a potential landlord), etc.  

You're not going to be fined unless the discrimination is something really blatant - like screaming at a minority that you'd never take "their kind."  

I see huge potential but the naysayer on my shoulder is screaming about the hassle and the damage and the blah blah blah.  

They scream cheap. 

Applicant #2 -- Everything about this applicant screams drama. 

Don't call any back who are screaming at their kids on the voicemail, etc.  

It will let you know if the tenant is one day late with a yellow circle next to their name, and the later they become the circle changes color, all the way to screaming red!

Can't hide the location, but don't need to meet people there when all the kids go screaming by.

To me, that screams an absurd level of immaturity and disrespect for rules.