There was no evidence, but look how many dogs had to die of suspected melamine poisoning before they recalled dog food. Hundreds of owners went without compensation because they can't prove the dog food did it. I think you're better off using the swiffer without the swiffer product in it. Can't you just fill it with vinegar water? or bleach water? Its better for you and your animals to use less toxic cleaners in your house and more natural ones.