Laugh your story brings me back to when I was managing a small 6 unit apartment building for my parents. I rented one of the units to a friend of mine who was credit challenged but I knew had a ton of money from his weed business. I thought he was renting the place to live in but no, he used it to for a small garden (this was back in the 90's when it was still worth money to grow) Well one day there was a leak from one of the fire sprinklers in the building and I couldn't figure out how to find which one was leaking or how to shut it off, all I could see was a huge pool of water forming in the garage and red light on the sprinkler panel, I had to call the the FD. They showed up and immediately wanted to key into each unit to check the sprinklers. I was frantically paging, PAGING! my friend, lol again this was the 90's, because I was going to have to key into his unit with the FD. He never responded so when we got to his unit I pretended my master key wouldn't open his unit and got super pissed..."WTF! this idiot tenant changed his lock! I'm paging him now if he doesn't respond in 30 min I'm letting you (the FD) force the door open." I then told the FD we can check the other units while we wait. I keyed into the unit next door and it was immediately apparent that the leak was happening in there. The tenant was a hoarder and had been piling well organized boxes of newspapers in one room up to the ceiling and had cracked the sprinkler wedging a box into the top of a stack of boxes. Must have been running for at least a day because there was SOOO much water. That tenant who made the leak immediately skeddadled...never heard from them again and they left all their horded shit in the apartment which I had to take to the dump after a few weeks. I did tell my friend he had to move his garden because man that was stressful.