Just tell him that coding a linked list will give him 200 exp points.
More to the point, coding a game protocol exploit could give him 200 MILLION GENUINE AMERICAN exp points. Or his account revoked. Either way, the parent wins.
Farmer: Drops down to minus 173.
Fry: Fahrenheit or Celsius?
Farmer: First one, then the other.
An interesting solution would be a browser plug-in gaining popularity which integrates with several major image hosting providers, offering client-side stenography and crypto. Only small files would fit though, but it'd be usable in some of the same scenarios Freenet was meant for, e.g. communication without 3rd parties being able to prove the communication takes place.
10 TEXT : HGR
30 FOR I = 0 TO 16
40 HPLOT I+130,30 TO I+80,161
50 NEXT I
60 FOR I = 0 TO 15
70 HPLOT I+150,145 TO I+150,161
80 NEXT I
"Please wear respectable clothes sometimes" -> Resolution: WONTFIX
"I can't figure out that Linux crap, get Windows!" -> Resolution: WORKSFORME
It's the perfect tool!
"I want a divorce!" -> Reassign bug to wife@localhost
Natural Selection had success in balancing itself by inviting diversity among its players. The marine team has chain of command - it allows less experienced players to be effective by following orders. On the alien team every player is equal. Both teams need strategic thinkers and good shooters. It leads to a enjoyable game for a larger spread of personality and experience level compared to, say, Counterstrike.