Consumer advocate: Manufacturers of children' s toys often place warnings on their products that overstate the dangers their products pose  Product-warning labels should overstate dangers only if doing so reduces injuries  In fact, however, manufacturers overstate their products' dangers merely for the purpose of protecting themselves from lawsuits brought by parents of injured children
Ttherefore, manufacturers of children' s toys should not overstate the dangers their products pose
The argument relies on the unjustified assumption that an action has an effect only if it was performed in order to bring about that effect.