During my train ride home, I noticed a man spreading his legs across several seats and refusing to make room for anyone. When a young mother with a sleeping toddler and an elderly woman with a cane asked him to move, he arrogantly told them to stand. I finally spoke up, and two friends joined me at the next station, sitting beside him and leaving him no choice but to make room. But things took a frightening turn when he grabbed my arm and demanded I delete the video I had recorded. Just as I felt trapped, the elderly woman and several other passengers stepped in to help. At the next station, transit officers were waiting. That day, I learned how powerful it can be when strangers stand together.