The room was shocked into silence when she said "oh, and there was the time at my elementary school..." and had another experience of guns at a school.
We had been surprised by this:
https://www.theguardian.com/world/2025/mar/08/one-in-15-amer...
2% of 340mm = 6.8mm injured in a mass shooting Conservatively assuming that's equally spread across all ages, and assuming a lifetime of 80 years, implies 6.8mm/80 = 85,000 people injured a year 85,000/500 mass shootings a year = 170 people injured per shooting
This is absurdly high - the Pulse nightclub shooting for instance injured 60 people.
It's obviously harder to analyze the number of people that 'witness' a shooting, but it also seems implausible that an average of ~595 people are witnessing each of these 500 shootings.
The problem here is that self-reported studies like this are incredibly unreliable. Interestingly, the same effect appeared in a pro-gun study, which cited an insane 2+ million defensive gun uses a year.