Here's where this lining of questioning can easily lead:
How do we know if a hubber was declared insane before s/he died?
How do we know if a hubber almost died, is alive, and also sane?
How do we know if a hubber is alive, but unable to hub due to insanity?
How do we know if a hubber is pretending to be alive but really is dead (now that's really insane).
See what I mean?
We could turn the question over and over and over and over and just drive ourselves... crazy. Oh wait! Isn't crazy the same as insane? Well, then I guess I, for one, am guilty as charged.