My chins used to fur slip a lot whenever I touched them but they've stopped now. They never were very vocal except for calling each others out or the odd short disagreement. However one of them started making the most unusual sound today and repeatedly too, did not sound like the alarm or angry bark, same kind of frequency but less high pitch and sounds like a typical kazoo sound. He looked in some kind of upset and wouldn't even take a treat off me and refused to interact with me when I was trying to reassure him. The other one was perfectly fine, curious as always and coming to see and smell me and interacting as usual. I really don't know what was bugging him as it was in the middle of the day and seemed out of the blue.