Absolutely!!!! There was a situation a few years back where a friend of mine had an electric potpourri burner. She poured some of the liquid stuff in it and thought nothing more of it. Well, one of her cats decided to take a sip, and liked it so much, they drank more.

The cat wound up in the hospital very sick from it. That's why I only use candles and jars with those smelly beads in it. The cat survived, but almost didn't.