Parental controls are also fun for adults.
I shared an apartment with this guy in my early 20's. I learned my basic computer skills from him, but he was all geeked out with the skillz. I had AOL. I came home from work and logged in, instead of hearing the classic, "welcome," I heard his voice, "what's up, b*tch?!"

Instead of hearing the classic AOL, "you've got mail!", I heard, "your skank friend emailed you."

Whenever I got an instant message, it played him emitting this really long burp.

With all that, he would randomly make my background and screensaver these horrible porn images with goats and vegetables.

/

And damnit I didn't know how to do that to get back at him.
So a couple months later, AOL was emailing and promoting these parental controls and walked me through step by step how to block adult sites and contact with other people. AH HA HA! Revenge was mine. He didn't even consider that I figured out how to do it so it was funny when I heard him complaining that he didn't understand what was wrong.

Well it was funny to me.
OH! And then a couple years later, I was shacked up with this bible thumpin' ahole that was possessive and abusive. He would say he couldn't sleep, in the middle of night, and would get online to "play Othello." He knew even less about computers than me. I would check the history and cookies and he was on porn all those times. I even bought him this deluxe edition of Othello to play and interact with online Othello players knowing damn well he wasn't really into the game.

Merry Christmas emeffer. I let those lies string out for a looong time before I finally laughed in his face and told him he was a big dumbass liar.