My parents didn't want me playing things that were too violent (the games with sexual stuff pretty much hadn't surfaced yet, and didn't interest me anyway), but they also didn't want me spending too much time on the computer in general. I remember begging for Halo PC when it came out, saving up $40 for it, and my dad finally let me buy it on a trip to Walmart one day. In the car on the way home though, my dad asked my brother what the game was like, my brother gave it, and my dad pretty much immediately said "we're taking the game back as soon as we get the chance, don't open the box." Me being the super eager 13-year-old, I'd already opened the game and started to pour over the little booklet that came with it, and my dad was pretty pissed.
He took it away for a couple weeks, then after I got on his case about it, he finally relented and let me install it on the condition that he be allowed to sit and watch my first few sessions (and naturally I agreed.) On the first session, after watching me play through the first couple levels, he asked me something like "you know that this is just a game, and that you're not supposed to shoot people right," to which I gave him the most condescending stare I could muster. After that, I only had to argue with him about the amount of time I spent playing, never about content.