The kids are home guarding the house.
Doberman Pinschers were bred to be guard dogs, which is why they're traditionally better at scaring people than, say, successfully navigating a spiralling children's playground slide. So, the fact that one out of two of these dogs sticks the landing should be considered a success. Although, it's probably a lot easier to be a "glass half full" guy when you haven't been KTFO by your pet.
The first dog gets down the playground slide perfectly. At least by the standards of a toddler. By Doberman Pinscher standards, it's an embarrassing failure. The second dog is the one that gets it right, by realizing that just because his owner wants to pretend he's a child, that doesn't make him one. He's a dog, dammit. Deal with it.