This is what I came in to yesterday morning. What a mess! Two floors up the toilet wouldn't stop running & the tenant didn't bother calling maintenance. It flooded the bathroom above me & crashed my ceiling. I still haven't totally swept up the mess. My landlord sent someone immediately, who fixed the toilet & brought a dehumidifier. When my space is dry enough they'll repair the ceiling. I'm relieved it was nothing serious but really, who lets their toilet run run run?