I Thought I Was Arresting a Dangerous 71-Year-Old Biker Gang Member, Slammed Him Against His Garage Door, Ignored His Pleas About Medication and His Crying Grandson, and Only Seconds Later Realized I Had Brutalized a Decorated War Hero—and That My Prejudice, Assumptions, and Rash Actions Could Have Cost a Child Everything, Destroyed a Family’s Trust, and Shattered My Career Forever