"Rhino" beetle

I met a rare, protected beetle in a populated area! It's a male rhino beetle with a big horn. Fortunately, it is not a pest because it only eats rotten oak wood.

I found him in a rainwater drainage ditch, lying on his back, trying to stand on his feet, unsuccessfully. I immediately helped him, took in my hands and placed on a rotten tree stump. He revived and disappeared with surprising speed.
I hope this was not the last such meeting.