Don't think the cat is freaking out - think the little bugger is making sure the hoomin is gone so he can get up to devious cat things
1:This is my street! Back off! 2:No, you back off! 1:No, you! Both: AHHHHHH! 1: Where were we? Oh, yeah...back off! 2: No, you back off!
I understand, Blackie went out into the high-grass and/or woods one day and never came back even after I took him to the vet. Feline leukemia got him, and he was a great mouser. I miss him, to this very day.