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What Would You Do?

Using hidden cameras, host John Quiñones observes and comments on how ordinary people behave when they are confronted with dilemmas that require them either to take action or to walk by and mind their own business. Various scenarios are created that force people to make split-second -- and often surprising -- decisions, and variations of the situation (such as changing the genders, races or clothing of the people involved) are often featured to see if different reactions are elicited. Examples of situations on the show include a waitress being harassed by her boss, and a drunken valet trying to park cars.

ABC News Live Weekend: Saturday

Shot in the Dark: Weight Loss Injection Wars

Special coverage on ABC News Live.

ABC News Live Weekend: Saturday

Last Lands: Cameroon and Gabon

20/20

Award-winning program anchored by David Muir, featuring unforgettable, character-driven true crime mysteries, exclusive newsmaker interviews, hard-hitting investigative reports and in-depth coverage of high profile stories.

20/20

Award-winning program anchored by David Muir, featuring unforgettable, character-driven true crime mysteries, exclusive newsmaker interviews, hard-hitting investigative reports and in-depth coverage of high profile stories.

Price of Fame: The Liam Payne Story -- A Special Edition of 20/20

Exploring Liam Payne's meteoric rise to celebrity as a member of boy band One Direction and his personal journey, including his struggles with mental health and the pressures of stardom.