Canna-cat story: I had a Siamese in jr high, and then again in the 80/90's. She lived to almost 15 yrs old. I had a tavern one block due north of my house, people would come over to get high. Zsa Zsa was very sociable when we were passing a bowl, she'd stand in the middle, look up and cry. She'd come by me when I was smoking bats at home, I'd give her shotguns in her ear. She wanted it, and she'd chill afterwards. If I was down to my last bat I'd share it with her. When she was euthanized unexpectedly due to hyperparathyroidism I realized that she knew the weed was medicine.