Apparently, fireworks are the best motivator. 

Funnily enough, this incident didn't stem from a terrible call, an own goal, or anything else you'd think dangerous antics would arise from--it was simply a result of Anderlecht’s Milan Jovanovic scoring a goal to take a one goal lead. The net caught on fire, the game was stopped, and the Belgian squad actually went on to win, 2-1. Though to be fair, it was likely under the threat of being burned alive had they lost--yet again strangely proving that it's better to be feared than loved. 

[H/T: Guyism]