2 of my worst tenants peed the bed, broke light switches and most of the delph, left the place filthy, put a large hole into the wall and I found several large bags of rubbish hidden in the back of the house but man they had great references.
Ever since those 2 I've asked for refs but tend to go by my own gut instincts on whether to let someone into my property or not. When I met the bad 2 I didn't really like them and should have trusted myself to know.
Never again