I've also spent some time trying to pick locks in my own house for fun. It's a fun puzzle and, like you said, very rewarding when you succeed.

Which is way more dedication that most burglars are willing to go through....

Locks do take a certain level of skill to pick. Some locks (see Kwikset) are pretty easy to pick. I personally have never used a bump key. From what I understand, they are relatively easy to use, but I have to imagine that you would still have to carry around quite a few of these in order to fit locks with all…

is easy to poison the dogs unless they are trained not to eat everything they see

Lol. I dunno, I'd be pretty terrified of 100 Chihauhau's myself. And lets face it, what home with 100 of them is going to have something worth stealing.

You ned to qualify that. 300 pounds of angry german shepherds is far more effective than 300 pounds of purse dogs.

300lbs of dogs. It keeps out all but the most dedicated.