Example: let's say you are playing an ultimate frisbee game with a multi-racial group of friends at a park, let's call it Harrison park, k? Let's also say (purely hypothetically folks) that you notice that all of the Asian folk are being rude. Your conclusion is that generally most Asians must be rude since you noticed a trend within a 'focus group' if you will. You would not, however, claim that Harrison park created a prejudice, nor would you claim that the game of ultimate frisbee created a prejudice. This is not logical.