Jerseygirl, your question got me thinking about the quality of the different bonds between my four. It is hard to spot when mine are all together, they are very peaceful and loving with each other. But there were some poowars going on and I couldn't figure out who left them. This is a whole new challenge when you're dealing with multiples: you never know who's to blame.
I can put Deirdra and Mops together and there will be no stray littering, the same goes for Deirdra and Lint, Deirdra and Neigey, Mops and Neigey, and Lint and Mops. But for the first time yesterday since the bonding has been completed, I put Lint with Neigey, just the two, in the exercise area.
--This is what Lint did, he is Julius Caesar of the poowars. 

I am hopeful he will give these wars up in the future.