Sneaking Out
It’s hard to tell from this angle but I have a sneaking suspicion that this is a teenager attempting to sneak out of their room. Too bad they ended up getting stuck ha going upside down outside the window. How do you explain that one to your parents? You could always say that you are practicing to be an acrobat or maybe and escape artist.
I am sure they will understand. How long do you think this person had to hang around outside their house before someone noticed them and got them down? If it was one of my kids I would probably pretend I didn’t see or hear them for a few months before I went to help.