The thing is you get good tenants and bad tenants. My parents rented their cottage for 20 years, it sits right next to their house, after the last two tenants they decided it wasn't worth it anymore and sold it.
In all the years they had mostly good tenants but three that come to mind.
One let his brother, who just got out of prison, stay with him and then the brother went back to settle an old score and the people came to the cottage and killed him and a guy that was visiting him. The police had the house tied up for a long time and we had to clean up the mess that was left.
Second, A girl that lived there somehow broke the faucet in the tub and she let the water run for over a month. My parents paid the water and sewer bill, one bill it was $300, the next it was over $500 dollars. When they called her and asked her if she was doing something out of the ordinary with the water she said "No" but the water is dripping in the bathtub, it wasn't dripping it was actually running!
Third couple, we are still not sure what they did but when they moved out the entire bathroom was filled with mold ceiling, walls, tub, toilet even the reserve tank that the clean water sits in before you flush it had mold in it! It was so gross.
They really didn't have a lot of trouble with people not paying rent except these three. First one felt that once the cops took over the house he should get a refund on his rent for that month.
Second one was a young girl that was just kinda dumb. My parents even worked with her on her deposit and rent to help her out.
Third one wanted their full deposit back even though we had to paint, replace curtains and bomb for fleas.
There were numerous other tennants over 20 -25 years of renting that wear really great tenants. You just never know what your gonna get. Even with screening somtimes you still don't know.