> a grapefruit smell for olfactory stimulation An amusing choice because domestic cats absolutely hate the smell of citrus fruits. Try offering an orange peel

> a grapefruit smell for olfactory stimulation An amusing choice because domestic cats absolutely hate the smell of citrus fruits. Try offering an orange peel to your cat to sniff, and they'll probably retch and look at you like "why would you do that?". (Which is good, because it's also significantly toxic to them.)