reup - we all have bad days in the early weeks, it does get easier and it gets easier much faster than with kids. Just up the training, do some work on being left alone and, as moose says, chalk it down to a bad day.
I disagree with your vet though, did your puppy go back for more play? If he did, then he was enjoying it and happy with the situation. Not sure at all about the dominance thing, I don't believe dogs have that perception at all.
oh my goodness at the singing!! Love the description of the playing. Harry hoards all the toys, even if he has no interest at all in them, just takes them because Hector is playing with them. We are restricting the dogs to the kitchen at the moment, just until Hector is older, calmer and house trained.
First accident last night, bloody DH's fault. Hector was dancing at the patio door and DH had locked up and couldn't find the keys, hardly his fault. Toilet training has been amazing, just this and one accident in the night first night. No poo's in the house at all, just jinxed this haven't I?
In fact, I thought Harry had a reasonable level of intelligence, Hector is astonishing, although I fear him being very active as he grows. in addition to the toilet training, we have sit, wait, settle, 'find it' and he just adores clickering, he do a sit behaviour just to get a cuddle or a bit of chicken. Managing to clicker both by reinforcing with Harry and working on transfering 'touch' to a piece of card.
Much much easier puppy than Harry was, like having your second child, your more relaxed and happy to enjoy it.