It happens all the time. Wedding dresses and bridesmaids' dresses are typically too long to put in the closet. But that sprinkler head is just sticking out of the wall at just the right height to keep the bottom of the dress from hitting the ground.
The hangar breaks a connection in the sprinkler, it goes off, spraying water (often rusty from sitting in the pipes), and flooding their room. Hotel gets evacuated since the alarm goes off and fire department gets called.