I have a home for my guinea pigs but Flossy's the only one who's usually in it. Polly is usually hiding in the hay. I thought this was the way Polly wanted it until I caught Flossy pushing her out!! Polly sometimes makes this high pitched piggy squeal. After watching for awhile I realised that this is her begging to be allowed into the house. Sometimes Flossy lets her in sometimes she doesn't. Flossy also steals food from Polly even when there's plenty there. There may be a large lettuce leaf just laying there but Flossy will steal the smaller piece that Polly has. Should I intervene or should I just leave it up to them to sort out? Flossy isn't hurting Polly and they do seem to be friends - Flossy can just be a bit spiteful sometimes.