I had one lady come into my office before we went appointment-only and scream at me that I was a horrible person and how evil capitalism was for America.

You jump on a deal if the number scream to you this is right.

also avoid (or at least patiently, thoroughly screen) anybody who is in a big hurry to rent,   and run away screaming if they offer to pay multiple months up front in cash or they try to get you to to skip any portion of the screening process, or start in on the sob stories.as for finding people with credit better than 700:https://www.fool.com/the-ascent/credit-cards/articles/heres-what-americans-fico-scores-look-like-how-do/so roughly half of people have credit of 700 or better.   

Him and my other tenants husband got into a screaming match outside the property.

Sometimes a great tenant can move in and then get involved with a reality TV drama queen who screams and throws furniture in the hall (happened to me more than once). 

My worst most filthiest disgusting tenants who caused me the most aggravation & called me screaming and threatening started out complaining before they moved in with small stuff that didn’t need to get fixed. 

You can eliminate quite a few that you just don't even bother to call back, because they are screaming obscenities at their kids on the voicemail, or someone in the background is telling them what to say, or they are at some party or at a bar and sound drunk - you just make a list of all the voicemails, and why you didn't call certain ones back.  

The challenge happens when they return, find their stuff gone, scream theft and suddenly they had all these other valuables that were also in the suite that are suddenly missing Mr.

No screaming sex at 2am?  

They scream cheap.