This is the video from a drone that smashed through the fifth story office building window of Ferrari race car driver David Perel and hit him in the head. The occurrence happened in Cape Town, South Africa and you can read a lot more detail about what happened from David HERE in case you're skeptical and think he faked it. He did not though, it's real and he has a lot to say about it (including the implications of a video going viral that you didn't intend to). The only thing that surprised me was how easy it seemed for the drone to break the window. Clearly that is not a Vegas hotel window you want to be having sex up against.
Keep going for the video.
Thanks to Bergstrom, who agrees this is exactly why windows are dangerous and should be illegal.