The worst thing a parent could do to their child is say no, the child has, tantrums, gets angry, aggravated, etc, then you will probably get aggravated back and ground them. But they should know they are not always going to get their way. It is easy to say no to older children, but whatever the case may be a toddler might take it a little easier. When saying no you are telling your child that you aren't allowing them to "get that toy" or "go to his/her house" whatever the case is, children don't like hearing the word no.
