Hello everyone! I have an elderly guinea pig who lives in a custom-built cage which is raised about three feet above the ground (four feet if you include the c&c panels around the edge) I have also recently brought two young, female rats home. I rat-proofed my room and the new girls have free-reign of the space whenever I'm home. It's been working really well until today. One of the girls began insistently trying to find a way into the guinea pig cage. After I thwarted several attempts, she scaled her way up a FLAT surface and managed to get in. I didn't realise at first as I was working on my laptop, but when i looked over she was in the cage, nose to nose with my piggie! Their body language seemed relaxed, they were just sniffing each other, but I was super cautious when i moved to separate them as I didn't want either of them to startle and misread the other's body language (different species and all). My question is, does anyone know of a way I can discourage this? My rats climb everything (my bed, desk, window sills etc) which is fine as i've made it all safe for them but my GP deserves her own space. I don't want her getting stressed or any of my pets getting hurt. TLDR; My rat is a mastermind and is obsessed with my Guinea Pig. How do I keep them apart?