Where is it from??

            I slept very soundly throughout the night, it was such a great weather. I woke up this morning after my first alarm rang. And then I heard water dripping down from the top, as if someone is using our shower. I ignored it. It was quite loud though. It continued until I finally woke up after my second alarm rang. I open the door and I found that the water was flowing from the small hose sticking out from our bathroom ceiling. Weird. I can't find any reason for it to have water flowing out. It can't be the rain, can it? This happened before, but It's only for a few minutes. It finally stopped when I took my shower this morning. What is actually happening??