Do you have an air conditioner sitting unprotected in your yard? With the cost of metals at all time highs, those copper coil and brass fittings are tempting to thieves just for the scrap value.
After worrying for years, but unable to figure out a way to lock ours down, I found the Gorilla.
It is an impressive deterrent with a solid installation in concrete. Although the price was a little more than I expected, it is a Heavy Duty Cage that can easily be removed for service. Ours was a special size that had to be custom made and they still had it installed in two days. This is one product and contractor that I can highly recommend. gorilla-cage.com
Now I can stop running out back every time the dog barks.