Thanks for the input, all.

I know the Advantage says it should not come in contact with your skin, but it has been on my skin many times before. It didn't bother/harm me. Does anyone know *how* it is poisonous, what it does?

That being said, I would like to use something which is 100% safe. I have tried Sentinel before(the tablets for fleas/worms). Is that more safe?

Thanks again guys