If our brain's decision-making part doesn't step in, we might perceive the unfamiliar person as a threat, which might activate our 'fight, flight, or freeze' response.

Source: https://www.forbes.com/sites/forbesbooksauthors/2023/08/14/cognitive-empathy-what-it-is-why-it-matters/

Manyora also expressed concern that a language barrier and the unfamiliar terrain in Haiti might pose a threat to the Kenyan security forces.

Source: https://krdo.com/news/2023/10/03/kenya-police-to-take-on-haiti-criminal-gangs-amid-criticism-of-their-human-rights-record/

Pinball, for the unfamiliar, is an arcade game in which the player controls to hit a metal ball around a playfield — typically themed based on a popular film, TV show, or other creative work.

Source: https://303magazine.com/2023/06/pinball-in-denver/