Last Friday we picked up Cola from his foster home in Walsall despite getting lost in the fog! He has settled in with my 2 girls really well and there has been no signs of aggression at all. He has bonded mostly with Rosie, the older smaller piggie and they have taken possession of the top floor of the cage. pixie , who is the youngest but VERY big, prefers to mostly stay on the bottom by herself. She comes up the ladder for hay and totally wrecks the upstairs! She knocks over the pigloo and food bowl which then blocks the ladder and she traps herself upstairs. The house that came with the cage is already broken so my question is can anyone recommend a house for 2 to snuggle in that is heavy enough so that if Pixie tries to stand up she won't have the strength to knock it over?