Even a semi-pro thief knows how to handle a dog. A 4' monitor lizard (less tail) is another story. I had one that hated people loose in the house a couple decades ago while I was on a trip. Came home to find the front door on the living room floor, but the storm door closed and wedged. I would have loved to see the guy's face. Xanadu could not be reasoned with, just caught as he went for your throat.
OTOH I did have several guns and about 6000 rounds of ammo stolen several years later. They caught the guy but didn't have enough evidence to take him to trial for hitting my place, but did for several other burglaries. He's doing 20 years without possibility of parole in Parchman, then a couple other minor 3-5 year stretches after that, plus finishing the stretch he was out on parole for when he hit my place before the 20 year stretch even starts. Seems he pissed off the judge too.
FT