I am going to be very frank and serious with the children in my house. These are the rules that I set for them and expect them to follow+
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(1) Absolutely no violence of any kind. If you violate this rule, send back home immediately.
(2) Absolutely no visit to pornography sites on the Internet. If you violate this rule, send back home immediately.
(3) No cursing and disrespectful words to anybody in the house.
(4) No running in the house.

I wrote the above and showed it to my son. He told me not to talk to the child now.  “Wait till next time he does something wrong.  Because children tended to have short-term memory.  It is more effective if we talk to him right after he commits a wrong,” he said. 

Surely enough, the little one will challenge me with a series of questions like these, “What do you mean? Why do you set these rules?  Do you mean I am violent? Do you mean I ever visit porn sites?”

I am still contemplating when and how to talk to the child about these rules.  Not a piece of cake.  I feel challenged even by a 10-year-old.