Hi there, I'll try and keep this as simple as possible to prevent wasting anyone's time. We have a carefully bred 9 week old male Dalmatian. He is displaying signs of calm, submission, affection, eagerness to please in the following areas: Toilet training, mealtimes, greeting, going to bed in his crate happily. He often lolls around with his tummy up on show. All of which indicate a submissive, content, secure dog. I am able to move his bowl while he eats, even take it away briefly. He is being thoroughly socialised, with our own 4 & 6 year old and frequent visits from more kids after school. I'm also carrying him into town regularly. Now here's my concern. The play biting often gets out of control (mainly with me). He flies at my trousers, clamps his teeth on, shakes his head with jaws clamped on and most worryingly, growls and barks at me while this is going on. SHOULD I BE WORRIED? I must be exacerbating him in this process. Say it happens in the garden after he has weed in his designated area, he'll suddenly decide it's time to go for my shoes or trousers, jump up. I had tried reprimanding with 'No' or 'drop'. I tried a short 'bop' on the nose with my hand and all of these made him worse. The growl/ barking got louder and he was jumping up at me. He sounded more aggressive than I was comfortable with. I had to walk away, close the door and stop the 'game' as he saw it. When I return a moment later he is still, alert and realises he's done wrong and we cuddle. I have Gwen Bailey's puppy book so am re-reading this section. I realise playbiting is normal and essential to learn their 'bite inhibition', but I just would like to know if this actual growling and snapping at me in this way is normal or signals an aggressive dog. I am nervous because I have two children and I've brought this dog into our house in good faith and their safety depends on me. Thank you very much for any help or reassurance you can give me.