Firstly he isn't going anywhere so don't worry!
But...did anyone else feel stressed/worried when you got your new puppy? Little reacue from previous thread is doing well but he is very hard work and into everything at the moment! Everything I do takes 100 times longer than before and takes much more planning. I have to plan to leave the house now wheras before I would just up and go. I think I didn't realise how hard it would be!
Poor dog 1 is being very patient but has told him off a few times.
I think I forgot how difficult it was after having 14 years of my perfectly trained and easy last dog- starting again is hard 
He is great in most ways though and his training is coming along well but he is taking up most of my time at the moment.
Any stories of success greatly appreciated!