Barneyboy is spot on. Most dogs I come into contact with that have aggresion problems were made that way due to a lack of socialisation and guidance from an early age.
However, I do believe that, just like there are bad people, there are bad dogs. I'm not one of those who believes there are no bad dogs just bad owners (although in most cases, that is true).
Whether the cause is bad breeding, or just a quirk in genetics, who knows. But some dogs are just dangerous. However, that's not limited to Labradoodles. It could be any breed.
The little terriors get away with it as
they're just sticking up for themselves because they're smal.
.
Big dogs are
"dangerous and should be put down".
How many times do you go for a walk and the little dogs are straining on their lead to try and get to you or your dog and no one says a word. Now, let's say that was a rottie or german shepherd. Then it's all a different story.