Actress Megan Hilty drives a car without an engine; dental patients' online exam.

Freestyle rappers are prompted with nonexistent words; a Chicago apartment is a bargain without a bathroom.

Believing they have tried marijuana, volunteers claim a buzz from water vapour; drivers are stopped for speeding; a man dunks his doughnut in a stranger's coffee.

An Arizona store refuses service to straight customers; supermarket employees are traded to a rival store; Reggie Jackson appears at a dry cleaning shop.

Carnie Wilson plays a nervous tattoo artist; New York restaurant-goers are served foam dishes; golfers are frustrated by balls in a tree.

Video chatting operators at a call centre are squirted; using scanners to check movie goers for illegal snacks.