so my new ratties just got dropped off about 15 minutes ago, how long should i wait until they are comfortable enough for me to clean their cage? they have pine bedding which i heard is bad and the shelves are looking pretty dirty. I heard pine bedding can cause respiratory infections, do rats sneeze normally? I have heard 3 little sneezes already and I was just wondering if that was normal no excited to be able to play my little girls! when will they be calm enough for me to hold them without them freaking out?