Ooooppss, sorry mf. I saw this last week and forgot to say anything.
Sour Pea - stop being a brat!!
But then again - is she really being a brat? She just wants "her" house to run smoothly. She sees bringing in those outsiders as her house being in an uproar. She hates it.
The best thing you can do is to keep them separated. The grandkitties are fine in the spare room. If they had gone to a boarding facility while your daughter was gone they would have been in a small crate most likely. The bedroom is lots big enough. No need to feel guilty.
Sour Pea is just doing all things cat. You should see the swats going on in the Catuary when someone new drops in (literally). DD will be home soon enough.
Assumptions do nothing but make an ass out of u and me.
We can stick our heads in the sand for only so long before it starts choking us. Face it folks. The pet population is bad ALL OVER THE WORLD!