In my opinion, adults should only occasionally make negative statements to children - only when the situation goes out of control. Otherwise, I think adults should tell kids the right thing to do in a patient manner, such as saying "why don't we read a book?" instead of "stop fighting!".
It's not a negative statement,it's letting children know not to do that,and make them understand that it's wrong. The parents should thoroughly explain why it's wrong,and never explain to the children with an aggressive tone. It's to help their children not cause potential harm to another.
