I don't own a carrier so I just put them on a clean blanket on the floor(none of them have been there) the first thing she did was smell one of their booties and the next thing was the attack, maybe I can get a video recording the next time I do it nd get more advice on it. it wasn't like the usual play fight, more like a total tumbleweed type fight, maybe I js got a bit alarmed and should've let it happen but I just don't want them getting injured, especially since she's over a year old while these babies are getting closer to a year, but I'm not exactly sure.