I just got a smart TV, but I've left it entirely disconnected from the network. I connected a Debian box running XBMC to it. I trust that machine far more than whatever is running on the smart TV. The rule for my trusted network is: if I don't have root, it's not trusted. And root is a necessary, but not sufficient condition for trust. For example, my Kindle is rooted, but I still don't entirely trust it since Amazon still has remote control over it.
Also, remember that in a city, you can't legally take your gun into most stores or offices. If you illegally take it in, you are subject to a felony and loss of your CCW permit.
Which city/cities are you talking about? Private businesses have to post a no-gun sign in order to prohibit lawful concealed carry on their premises, and illegally carrying into one of these businesses is usually treated as a matter of criminal trespassing - a misdemeanor (although you'll still lose your CCW permit). Government buildings are a different story - federal buildings are always felonies, although state buildings can differ (e.g. Ohio-> felony, Oregon-> OK w/ permit).
The rest of your comment is excellent advice for future CCW holders. For anyone with a CCW, always remind yourself of your responsibility every time you put on your weapon.
I have a Kindle paperwhite (a "normal" kindle). I have rooted it, and I am able to ssh into it. It runs Linux:
[root@kindle root]# uname -r
It looks like it has most of the GNU stuff, so in that sense it is more familiar than Android.
I'm not disagreeing with you - it's a device built for a single purpose. It just uses a general computer to do so.
and it can never be physically taken from you
Me and my $5 wrench disagree.