If the last two people/the majority of people that shot you (2/3) are wearing red, you will likely be triggered to shoot when you see red again. He was also using a black phone when the white guy used a grey phone. All the guns they used were black so guy in a red shirt holds up a black item, compared to cooler tone shirt person with a grey phone, which do you think you will feel more threatened by? This proved nothing when it could have been a really good teaching moment.
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