September was the month of the exhaust valve. After the unofficial biography of kickboxer Badr Hari (written by Jens Olde Kalter) became in no time both the most sold and stolen book in the Netherlands, again the question arose whether practicing a fighting sport makes people aggressive. Because, as it turned out in the bestseller, Badr was also outside the ring always a sweetheart.
Read the column (in Dutch) on DeFusie.net.