You shouldn't put weird things in your mouth.
James is riding the subway with a friend when the friend spots a lost retainer on the next bench and dares James to put it in his mouth.
James wants to avoid his friends calling him a chicken.
James tells his friend HE should put the retainer in his mouth or else he's a chicken.
James succumbs to peer pressure and puts the retainer in his mouth.
James' friend refuses to go through with the dare and James calls him a chicken.
James' friends film him and put the video on YouTube, prompting everyone to call James a moron instead of a chicken.