How do you explain that one does not need to be a violent person to like Duke Nukem 3D?
There are reasons people like Jack Thomson exist, and one of them is that these things cannot be adequately explained to an outsider. And when someone you care about suddenly shows up and wants to know, and you try your best to explain but know deep down that everything you say is going way over their heads, that's not really comfortable. If makes you feel bad, and makes them feel old, stupid, and perhaps a bit worried if they managed to catch you with Doom 3 running. I now make it a point to never be playing a video game whenever anyone from the more senior generations happen to stop by.
This part angers me. My own mother catches me playing alien versus predator back 2000 and thought that the game was such an evil incarnation of the devil that she wanted to pass it through a fire to cleanse it. She's christian, and personally i think she over reacted to it, and thought a little to highly of herself at the same time. As much as she yelled at me i played that game for 2 months, and had it another three. I only got to beating the alien profile. I just didn't find the game very entertaining from day one. Then when i was going to get rid of the game, i told my mom i was going to sell it to my friend, and she over reacted like i predicted, and i said well i hardly used it my friend wants to buy it from me, i'm not going to give it to you to burn. So i made her buy it off of me, i mean ****, she's not going to burn my stuff for free of that of which i was going to sell. After playing the game my mom feared for me

Of course my dad didn't care, he watched play unreal tournament in 2000 at max volume shouting obscenities at the computer as i was kicking ass. He knew that the game was deathmatch, he knew i wouldn't go psycho either.
Just some people these days.
And yes i make it a point to play games doom3 and fear, and so on around older generations of people. Hell my grandpa doesn't care, he just doesn't know how my hands work with the control schemes.