A soccer fan in Spain wanted to show his disgust for Armando, the goalie of the Athletic Bilbao team after he allowed the second goal of the game against Real Betis. So, he does what any loyal soccer fan does: he calmly walks down the stairs to the edge of the field separating the stands from the field, waits until the goalie turns to get an out-of-bounds ball, then throws a plastic bottle filled with liquid at the guy.
Unfortunately, his aim was better than the team's and he nailed Armando right in the face, dropping him to his knees and opening a cut on his face. Security guards immediately grabbed the fan, who--if you watch the video--just calmly turns and starts walking up the stairs after his toss, as if that's exactly what he intended to do. At that point the referee also called the game, fearing additional hooligan violence. If you watch the clip, they show the toss a couple of times at the beginning, then a couple of goals being scored, and then back to the bottle . . . and it's all in Spanish, but I think you can tell pretty well what's going on.