In a video posted by Cillian Irish of Cork, he shows how he rescued a friend locked inside a bathroom by using his quadcopter drone. The bathroom wouldn’t unlock from the inside, and the only available key was trapped with her.
The Irish man flew his DJI Phantom over the building and maneuvered it near enough to the bathroom window for the woman to tie the key to a string of twine hanging from the drone.
After bringing the drone back to him, Irish retrieved the key and used it to open the bathroom door from the outside, which freed the woman from her prison.
Now we find another use for a drone! Clearly not just for aerial shots but a rescue tool as well!