Apparently they are better than guard ducks.
At least they had better be or otherwise they would look like a proper Charlie

Sorry Hipster, I don't understand 'serious'.

In all honesty, I would stick with the German Shepherd.
In my opinion, easier to train and more predictable.
Rottweilers are great in putting the fear of God into any wanabe burglars but the presence of a well trained German Shepherd is equally as daunting.
Try asking the supplier of the dogs if they have any ex-police dogs, as they will be well trained already.

Do German Shepherds like meat?

Of course they do - and that's their downfall. Any professional thief will have the dog dead or unconscious within five minutes using drugged meat.

Go get a motion sensitive alarm linked to a control room - and the good news is, you don't have to take it for walks.

I kid you not, a family friend has a big car junk yard in Sydney, always got broken into. Get a few geese and a good light system.

If his office wasn't trashed young hoons would squat in an old car and smoke a bit of the weegie weed, police once a week was the norm. He had an Alsation guarding the place. A couple of these thieves jumped the high fence and the dog attacked one, bit his arm/leg badly lucky the fellow wasn't mauled to death, anyway this crim sued my friend and won. I mean what the eff is that? You break into a place with intent to steal and you can sue the owner if you get hurt?

The young druggie in question was wanted by the police for a number of other break ins.

They certainly are. Don't mess with a flock of angry geese. Much more effective than a mere dog.

Do not know about that....ever been to Isaan or Cambodia?

Perfect guard dogs are imho...
Doberman
Shepherds
Pit bulls

They just need to be properly trained....there is a guy nearby Hua Hin who will take your dog three month intent raining and afterwards you have the ultimate guard dog...