I'm usually a curious person. I was thinking, "I wonder if I could scramble and egg inside a shell before I boil it." I don't like egg whites, love yolk (cholesterol laden as it is ). But I know a was giving all I got to trying to break that egg yolk inside the shell, to no avail. No matter how long or how hard I shook the egg, the yolk stood intact. I'm guessing I'd have to stick a pen in there to bust the yolk, then shake it. Just goes to show eggs are definately more durable than alot of people give them credit to being. Any suggestions???