If someone has a solution to this problem I'd love to know! But right now we just have to stop them in the middle of playtime.It starts out like what is in the videos then almost always intensifies and often turns into a fight. Dorie gets hyper and tries to get underneath Luna and nip Luna's jowls then Luna starts play-snapping and if Dorie gets hurt just a little bit she blames it on Luna then Luna reacts in a negative way and so on and so forth...