What are they like? Do they try to herd you like other herder puppies? Do they nip? Are they really mouthy? Are they big barkers? What about training...those of you that have had them, are they easy to house train or do they take some effort? Socializing...do they need more or less then other breeds in your experience? If they do need more, what did you do to socialize your puppy? Is there a big difference between the sexes? Are there any other quirks that someone *ahem* who is considering a corgi puppy would want to know about?