slowrev said:and yes you pretty much can't stop an intelligent determined thief.
Problem is most "intelligent determined" thieves already have their law degree and have found politics. Why steal from one person one at a time, when you can steal from all teh people all the time?
And, no method will stop a dedicated thief with a trailer and a winch. 2 minutes and they are gone.
However, for the stupider thieves. A simple ball valve or two that lock the steering cylinders in place.
While they are higher maintenance and prone to getting lost, invisible barkless attack dogs are good. Got an extra one in the cage, for sale if'n yer interested....
jb