Sorry for that, but I have to interrupt your hopefully beautiful sunday, before I'm goin crazy.. :D In one of my projects (I'm a newbie) somehow I glued the pivot point of rotation to the 3d curosor (generally). If I select anything in my scene and push R, the center of the rotation is the 3d cursor, no exception. I attache some pictures, where you can see it. I'm sure somewhere somehow I used a shortkey accidentally, but google doesn't help, maybe you will. Extremly hard to work this way. Thank you!