Strange occurrences

When I went to sleep last night the weather was calm.
Yet at 3 am I was awakened to the sound of wind chimes. (We do not owe wind chimes). Then I heard a gust of wind (one gust not several).
Then aliens climbed through my window and feasted on a meal of bones. I heard a crunch, crunch, crunch. They enjoyed their meal and phoned to tell me so ten minutes before my alarm went off. They did not leave a voice mail message.
Okay, so, it was nice for them to travel all the way from Mars simply to visit me. But I won't be hurt if they do not do visit again.