Public service announcements, or PSAs, typically utilize negative advertising techniques for their shock value. Showing the gruesome results of the activity they are trying to stop is often a very powerful tool to reach the heart and mind of a consumer. Instead of focusing on the positives of avoiding an activity, the ads show what will result if someone does the activity. These ads can very powerful and, while younger viewers may initially pass them off and laugh, they do reach them at a deeper level.