Have had this problem with Branston and Minstrel, on the whole they got on well - but like Millie, Branston wanted to take over and Minstrel was getting a bit fed up, not sure how we resolved it, but if Branston barges in say if Minstrel is sitting on my lap, I would get up and put Branston in the pen for a while, let him out, but put him back if he barged in again, I kept doing this till he learnt that it was better to sit elsewhere, even if it was beside us. He does eat in his pen, otherwise he would have Minstrel's dinner as well as his own.
At first, whilst on our walks I kept Branston on his lead/in the stroller while Minstrel had a run round/play on his own.
As I say they get on well together most the time, but I do have to be vigilant and make sure little Mr Bossy Boots doesn't get all his own way.
