IDK either but the term is kind of silly to me.

Mental Defect to me is anyone who desires to have a gun.

And what about other issues.
Like ...what if the person is a really bad aim... seems like THAT person oughtta be barred from gun ownership

or, what if they're easily distracted (**** Cheney Syndrome) ?Oops--lookout huntin' buddy!

Wonder if they regulated slingshots who would be allowed to own them?

ECHOES