When I was little I used to be a complete asshole in online games. When people gave me crap I crashed the servers they played on, sometimes also their client as well. (Starsiege and Tribes 1 were so easily exploitable back in the day)
I don't plan to have children in my life because I hate humanity, but if I did I wouldn't let them do the same mistakes I did. (that is be a complete dickhead on online communities)
And of course keep them away from human porno, and articles relating to the feeling of "love" as well.
“I am the dragon without a name…”
― Κυνικός Δράκων