Final answer:
In 'The Office' Season 3, Episode 17 titled 'Cocktails', Michael Scott gets stuck in a straight jacket during a magic act at a corporate party.
Step-by-step explanation:
The question refers to an episode from the television series The Office. In season 3, episode 17, titled Cocktails, the character who gets stuck in a straight jacket is Michael Scott, played by actor Steve Carell.
During a corporate party at CFO David Wallace's house, Michael decides to entertain the guests with a magic act, but the escapade does not go as planned, resulting in him being stuck in the straight jacket. This act is one of the comedic highlights of the episode, showcasing Michael's quirky personality and penchant for attention.