One of my favourite examples of this is an episode of Mad Men (mild spoiler) where at the start of an episode one of the accounts guys is riding a ride-on lawn

One of my favourite examples of this is an episode of Mad Men (mild spoiler) where at the start of an episode one of the accounts guys is riding a ride-on lawn mower through the office (new client), and at the end of the episode a drunk secretary is using it to run over someone's foot. *edit: spelling