Did you ever have one of these? Most them happen to me in Mario Kart Wii. I end up meeting alot of hackers in Battle Mode. They normally have a "no damage" code on, so they never lose any balloons and chase after you with Stars/Mega Mushrooms. I also once landed on the rampless part of the yellow thing in Chain Chomp Wheel, only to find a guy also sitting there who ran me over with a Mega Mushroom when I tried to see if he was one of those "dummy players" (people who are away from the TV for some reason and get pushed around by other people during the match).