I almost ordered one this year, because they should do very well in my location. But reading about the acid inside the shell scared me off. It sounded like too many disasters waiting to happen, even if I concentrate on growing it for the fruit around it. I don't want a neighbor's dog to get ahold of it, and if I have kids someday, that could be really dangerous.
Anybody who's had good experiences with this though, and knows of a safe and simple way to home-process the nuts, certainly feel free to allay my fears.