Common foods in the home you should keep away from your pets
Most Common

Chocolate
(contains theobromine, similar to caffeine, and causes heart arrhythmias and/or death)

Macadamia nuts
(causes severe rear leg weakness and temporary paralysis)

Grapes/Raisins

Pear Seeds Skins & Stems, Plum pits, Peach & Apricot pits, Apple seeds, Persimmons.

Raw Eggs
Raw Fish
Rhubarb Leaves
Potato Leaves & Skins
Tomato Leaves & Skins
Baby Food
(contains onion and garlic)

Alcohol

Almonds

Caffeine
Coffee grounds - often used in gardens as Cocoa Mulch - coffee beans and tea.

Raw Cloves of Garlic
Even though garlic contains thiosulphate like the onion, it appears that it's much less toxic & large amounts would need to be eaten to cause illness.

Mushrooms

Onions
(raw, cooked and dehydrated: destroys red blood cells and can cause anemia)

Tobacco

Yeast Dough