Our second Pug arrived home on Sunday and we are all besotted, except for our existing Pug who is still unsure. He is almost a year old, neutered, well socialised and gets on with dogs of all ages and sizes, including doggy visitors to our house. Our new addition, Margot, is 9 weeks old today and poor Henry is a little confused of what to make of her.
I read up on the theory behind introducing the two and have been very careful to supervise them closely and pay Henry lots of attention, treats and praise when he is around her. Several of my books told me to expect some noisy posturing and possibly Henry pinning Margot and not to interfere unless things got too rough.
They are fine together on my lap (they are curled up right now asleep together) or playing on the sofa but as soon as they are on the floor and Margot starts moving quickly Henry chases her and pins her down and she squawks and resists. Henry can be very gentle with her, he patiently sat and yawned whilst she chewed his tail and his collar earlier, but as soon as she is moving he is back to pinning her down. Henry is clicker trained so I've been using the clicker and treats with 'leave it' and 'watch me' commands to keep his attention focused on me and not Margot, which does work. They are always separated when I can't supervise them, Margot has a crate and pen which she plays in when I am out of the room.
My question is should I be interfering like this or should I just let them figure it out? Henry has never displayed any aggression before and plays with the younger puppies at our training classes just fine so I'd like to think he wouldn't hurt her, but she is just so teeny. Any advice would be very much appreciated.