One of our buildings had front and rear doors. Very convenient, but we found we had trouble with some tenants who used the back exit more as a “getaway” than for hauling laundry & groceries. One tenant, who had too many visitors to suit us, was finally “urged” to move. He returned the keys, so I went up to check the apartment. Everything seemed fine until I opened a closet door. There was a whole indoor garden, complete with grow lamps, etc., full of marijuana plants growing nice as you please.
At this point, I had two choices: call the police and have the story of our “drug den” in the local papers, or close the closet door. This being many years into my landlording career, I closed the door.
Next morning, the closet was empty.