I'll be totally honest, I triple-encrypt all my hentai, triple encrypt all the software I use for exploitation of anything within my reach, and I triple encrypt log files.
I also encrypt all my flash drives, and I favor long walks in the torpark :3
I've also taken the liberty of making the networks of schools and other places utter living hell for systems administration, be it getting into payroll's computers to have a gander at their federal tax tables, or whether it's something as silly as causing local DoS on a network by starting ARP poisoning from the central access point to every single node on the network.
Mainly because the people I do it to or jerkoffs :3
It's all purely for pranks and education xD