Was she stoned? I had that happen to me thanks to some stoners above me in a college apartment at Purdue one time. I came home from grocery shopping to a waterfall in my living room. I busted into their apartment and turned off the water, they were too stoned to even attempt to stop it or care. They got evicted and I didn't renew my lease when it was up, the rent turned out to actually be too low in that case.