Scenarios include a veiled Muslim woman being denied service at a bakery; a man slipping what could be a date-rape drug into his female companion's drink; people collapsing on a busy street during rush hour; and a polygamist and his three wives celebrating his marriage to a fourth, a visibly uncomfortable teenager.

Season 4 premiere: Scenarios include a gay teen being bullied; a tipsy mom at a bar with her child; a high-school boy being tutored by a sexually aggressive older woman; and antiwar protesters heckling a would-be recruit and an elderly veteran and at a military-recruitment center.

Scenarios include a tipsy mom in a bar with a young child; a clerk making anti-Semitic insults to a Jewish couple; a panhandler pretending to be needy; a Muslim teenager arguing in public with her conservative parents about her attire.

Scenarios include a young man in a park threatening his female companion with physical harm; a grocery shopper criticizing an overweight mother and daughter for filling their cart with junk food; a person pulling an obvious slip-and-fall scam in a store.

Scenarios include children on leashes; physicians in a bar before going to work; and a man berating his wife for wearing a bikini when in his opinion she isn't in good enough shape to wear it, and a mother berating her teen daughter for the same reason.

Scenarios include an obviously drunk teenager getting behind the wheel in a public place; a man reacting negatively (and loudly) when his son tells him he's gay in a cafe; and a woman loudly belittling her daughter during ice-skating practice.

Scenarios include a man being given a date-rape drug by a woman; a waiter harassing two drag queens in a suburban coffee shop; an obviously pregnant woman drinking heavily at a bar; and a bicycle theft in broad daylight in a crowded park.

Scenarios include "mean" girls verbally assaulting another girl in public; a waiter harassing a lesbian couple dining with their children; a clerk at an upscale store trailing a black customer; and a restaurant patron speaking loudly on a cell phone; and a baby left alone in a car. All segments aired previously.

Scenarios include teens taunting an elderly man, and "dining and dashing" at a restaurant; EMTs on break refusing to help a woman in distress; a shopper accidentally breaking an item in a high-end store, then asking other shoppers to keep quiet about it.

Scenarios include elderly shoplifting; underage drinking (and how bystanders react to separate groups of white and black teens doing so); and construction workers (then men in business suits) harassing an attractive woman. Also: a gold-digging segment in which a young woman confesses to a bartender that she's waiting for her older fiancé (who has just left the bar) to die so she can inherit his money.