5. Alcohol
Be reasonable and never give your cat taste drinks containing alcohol. Be careful, because your feline friend might try and sneak up on your drink left unattended on the table. A small amount of alcohol is enough for a cat to get poisoned and intoxicated.
6. Caffeine
Letting your cat share your coffee or tea is absolutely inacceptable. Food products as well as drinks that contain caffeine are bad for cats. Caffeine causes excessive urination which leads to dehydration. It also affects the nervous system and the heart. Chocolate is even worse since, apart from caffeine, it contains theobromine, the latter being capable of killing your pet.