Dcats 3 & 4 hate each other, I can't even leave them in the same room for two minutes. Dcat4 (Kloppy) is a wind up merchant and dcat3 (Rosie) is a hysterical drama queen who shrieks and cowers when he so much as breathes next to her 
Well! Today I left for work, it was cold and rainy (not usual for here) and both cats were left inside; I fretted all day imagining coming home to a smashed TV and blood everywhere but it was strangely calm 
There's been no hissing or spitting - I think peace has broken out!