Physicists, Doona Covers, & The Corners of Unsubstantiated Spheres

Several famous Physicists turned up to ask me if I was doing work looking into the corners of unsubstantiated spheres. They were disappointed, of course, to learn that I was just trying to put a doona cover on, but we all managed to have a good laugh about it in the end. I got some rare ectoplasmic autographs ...