Best anti-theft strategies for Yaris without engine immobilizer?

[doginmyyaris]

As the name implied, other then to and from work, there was always a big black lab mutt sittin' in the back....with all the windows all the way down (watch the heat, people!)

Alas, after 17 1/2 years (!) I had to give my best friend an overdose of morphine IV after he shattered a very arthritic shoulder.

Back on topic...instead of a living theft deterrent, I now use an AUTOTASER. Made by the same "Taser" people that make the guns, and no longer on the market, it's "the club" with a "kick"!! Positioned over my DVD/stereo, that too becomes too painful to mess with.

....but I'd take the mutt-deterrent over the electronic-deterrent, anyday......