when we were out last weekend we were walking through a field that had long grass growing. My two were romping about in it, Maddie got excited and did her mouth at Bramble but then she went over threshold and went at her. I wouldn't say it was true aggression
This has just happened on our walk today. Out on a lovely open field and Murphy started getting excited and running at Millie barking and snapping. I really believe it is Murphys idea of fun and it isn't aggression but Millie is very, very sensitive (if I ever have a bit of an argument with my son, she runs off to hide) so she does not like it and comes running back to me for reassurance.
It wasn't long ago they used to play fight constantly and I used to hate it because I always worried that it could tip
over into a proper fight (it never did) but now I wish that they would interact more often.
I'm not really sure what the correct approach to this type of behaviour is, but feel that it's lack of impulse control by Maddie and needs to be prevented to stop it tipping over into aggression. I try to keep her calm all the time. She used to be so chilled.
Plus Bramble doesn't like it, but unlike Millie she barks back.
However, if Bramble goes for Maddie, usually guarding, then Maddie runs away and I call her to reassure her.
Interestingly, I watched Choosing the right puppy for you, a while ago. The trainer on it did say that dogs that were allowed to play too roughly together for too long in the same house could end up with aggression problems. Although we didn't let our two play for too long I think maybe we allowed the play to be too rough which could have contributed to Maddie's problems. If only I'd known that then!!