7. Alcohol
You already know this one. Beer, wine, cocktails — off-limits. But alcohol shows up in places you might not expect: hand sanitizer, mouthwash, cooking wine, vanilla extract, some bread doughs, even certain perfumes if licked.
Dogs are much more sensitive than humans. A tiny amount causes major problems — stumbling, confusion, slow breathing, sometimes coma. Symptoms come on fast. The most common scenario? A party. Someone leaves a drink on a low table. If you are hosting, watch glasses on low surfaces. The next one is in your morning routine.