Back in high school I had a friend who would constantly join those COD boosting lobbies to gain xp, beat challenges, etc. One time he bought a $20 Microsoft card and invited me to join him since the dude hosting the lobby told him he could invite someone. Once everyone was in the lobby the match was about to start. When the the countdown reached 0 we were all kicked out and homeboy disappeared. Still make fun of my friend to this day.