Dangeruss!
There were four or five Stag Beetles (Lucanus cervus, Lucane cerf-volant in French) in my garden on Thursday, around 22:00. They made a strange noise against the window and my sister had seen one about the same time the day before.
I managed to take a couple of pictures, even though it was pitch-dark. I even caught one. It was surprisingly easy: when you disturb them, they take a menacing pose and freeze completely. The one I caught didn’t move a leg during the picture session, until I put it back where I found it.
There are some pictures below.