We make a lot of hard boiled eggs for breakfasts/snacks, so I tried this method. The last time we did about 6 in a plastic Tupperware with a lid. The eggs were all beat to hell.Using a glass, covered by your hand, seems like a good way to make a mess. The tupperware with the lid helped.
I didn't shake it as long as this video showed, and I still had to pull the shell off the egg, but it was quicker than cracking it, rolling it on the paper towel, then peeling it. And I did three eggs this way. Maybe if I did just one I'd do it the traditional way.