Buy the giant earmuff headphones. people will get the message. And if they don't, you probably won't hear them anyway. I wish I could get away with it. Unfortunatly, I have to deal with people all day long, so I can't pull off the earmuff thing. Best I can do is have an earbud in one ear. Just tell everybody that you talk to not to mention the World Cup around you on the days that you don't want to hear the results. My dad does this all the time. Most recently, he did it for the Champions League Final. Nobody said anything to him, he went with a complete media blackout all day, and was able to watch the match when he got home from work without knowing anything about the outcome. He started doing this because a couple years ago, my mom spoiled part of the game for him. I don't remember what game it was, but one of the teams scored a late goal to send the game into overtime and before the match my mom told my dad this little bit of information essentially spoiling the surprise of the goal because he knew it had to happen. My mom hasn't done that since.