I'm starting to get quite concerned. Oscar has completely stopped standing up to Hugo AT ALL. To the point where whenever Hugo tries to instigate play Oscar runs away. They played nicely together to start with but now Oscar just looks harrassed/worried then legs it (over the babygate which he has discovered he can jump!). At the same time Oscar is tolerating Hugo near him more and has stopped automatically moving off the sofa when Hugo gets on. But as soon as Hugo puts any teeth on him Oscar is vamoosed. Which is fair enough because Hugo seems to think that hanging on Oscar's ears and playing tug with them is an okay thing to do (Oscar tolerated it at first and played back). It's a bit like Oscar is teaching Hugo bite inhibition the Dunbar way... tolerating less and less. I'm just really surprised that Oscar is not actually "telling him off", just running away. Oscar will still defend his dinner and his chews and Hugo respects that and keeps his distance but he doesn't seem to be getting the "leave me alone" message from Oscar's disappearing act. I've started putting Hugo in his crate when he has chased Oscar away?? Do you think this is the right thing to do? On the one hand I kind of think "let them sort it themselves". But on the other I hate seeing Oscar "upset" and isolating himself away from us and basically want to stop Hugo taking advantage of Oscar's good nature and beating him up/driving him away. Does any of this make any sense? Oscar's behaviour seems unusual to me - I fully expected that he would tell Hugo off a bit more. Does anyone have any ideas on how to handle it? Opinion on whether timing out Hugo when he chases Oscar away is a good approach?