visiting the san francisco zoo, darius' pals dare him to eat a spoonful of wasabi, noboknown t supermething he's never heard of before and that he clearly can't pronounce. >> they bet me, like, ten dollars, to get this gosabi sauce. i can't say it. goslabi? >> reporter: he takes the challenge. >> all right. >> oh, my god. >> reporter: when i saw the film and that scene starts to play out, i was very unhappy that they were having you do that. i felt like they were picking on you. and then, as i watched it unfold, i realized that they were treating you just like everybody else. >> when we was filming, there was a lady, like, by us and they sought they was picking on me and stuff like that, so, i think it shows a good message and just treating me like others. >> reporter: he's just one of the guys and it's that scene more than any other that captivates the kids in the school they travel to. it's become a popular way to raise money for medical research for duchenne. nothing more fun for a group of high school students than having their own goslabi challenge. darius smiles every time. so