 Certain things, drugs or what have you. Yeah, the drug and bomb dogs like at the airport. So I have seen that. I'm amazed how these dogs are better than us at knowing when they're supposed to be working and when they're not working. Because some of us get a little confused on that sometimes. They don't like us petting them for some reason. They're working. Anyway, the liquids that Wheezy can detect could be those used to start.