Supervised puppy play groups and puppy kindergarden classes may also be helpful, provided that bigger, more dominant puppies are not allowed to bully or intimidate the more timid ones. (dogbreedstandards.com)
A very shy puppy will not do well in a noisy household with small children, just as a very dominant puppy won't flourish in a sedate, senior citizen household. (flatcoat.com)
That is why is is silly to be worrying about a dominant puppy... the puppy is a brat that needs training, not force. (samthedogtrainer.com)