LOL, Patty. The written instructions I send my customers stress the importance of slitting the shells of the nut to allow the steam to escape to avoid such "explosions". I've slit some inadequately when in a rush to sample a various variety, etc. where I typically will cook just one or two in the microwave for a quick evaluation. Well, when I haven't slit them enough, they've really exploded and made a mess all over the inside of the microwave so I had to do a thorough cleaning.
It sounds like you did not cook yours completely though I personally don't mind the center being a bit crunchy either.
Thanks for the laugh, Patty!
