Participants that fail to follow the right steps enjoyed a hot breeze. Yes, they were covered with fire proof garments and still I bet that they felt like a paratrooper falling of the airplane and hoping that it will work this time too.
Making out of ordinary experiences the extra ordinary doesn™t necessarily means that the user have to dip in a bath of flames. Some times even the most obvious interaction is the one that is needed. take for example junk mail. Now think about a mail experience that doesn™t have it. Simple no?