I have discovered something verrrrrrry interesting. The last time we both went to Hawaii we bought a traditional Kava Kava serving kit, which is basically just a woven basket, some coconut shell cups, a cloth filter, and Kava root powder. Kava kava is legal, mild drug, and a traditional polynesian drink - aka ʻawa (Hawaiʻi), 'ava (Samoa), yaqona (Fiji), and sakau (Pohnpei). More than anything, it makes your mouth numb and it smells and taste like dirty socks, but it does apparently induce a very slight sense of relaxation for some people.
Last night my cat, Little Tyke, was absolutely tearing up my office - high-speed u-turns off the couch included. At first I thought there must be a fast animal of some kind in here. I couldn't see what she was chasing but the growling and thrashing couldn't be missed. Finally I saw her directing the sideways attack mode towards an brown blob on the floor. It was the Kava strainer cloth! She had been throwing it all around the room. I can only guess that it must be the smell. By all appearances she thought and still thinks it another animal. I picked it up to show her that is was just a cloth but she sat on the couch watching and growling at it all evening. Even today she walks by it very cautiously.
I've had animals all of my life and I've never seen one act like this except for a few cats that went crazy on catnip.