If someone starts shooting innocent people in your presence, would you respond, or just look on slack-jawed?
If a fire breaks out would you do something, or just sit there in a daze?
As long as you respond, you are the first responder when something happens in your presence.
But what about those who show up in response to a 911 call? They are "delayed responders" or "late responders", not "first responders". Some of them may even be helpful good guys, as long as they aren't police. But they aren't first, even if they respond to the call.
Calling them "first responders" is a lie designed to brainwash you and prevent you from thinking. Or acting. "Leave it to the professionals". Ha.
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Reminder: I could really use some help.