Alcohol
Avocado
Macadamia nuts
Grapes and Raisins
Xylitol
(Xylitol it's a sweetener found in many products, including sugar-free gum and candy)
Apple Seeds
Coffee
Garlic
Chewing Gum
Mushroom and Mushroom Plants
Onions and Onion Powder
Rhubarb Leaves
Salt
Tea
Walnuts
Moldy Foods
(who will feed a pet with moldy food, shouldn't even have a pet. But sometimes, they can go explore trash cans or the neighborhood and eat something moldy, so be careful!)
Tomato Leaves and Stems
Mustard Seeds
Beer Hops
Chili
