Hmm.
Minecraft: Set TNT Traps everywhere.
Terraria: Take other people's items and chuck them in lava.
CoD: Camp in corners with Riot Shields.
Halo: Be a butt and kill my own team.
It's funny in Terraria because I take the good and rare stuff and either keep it (cause if I'mma be a dick might as well steal your shit) or chuck it in lava.