While I was waiting at the train platform this morning, I noticed a man further down who was shouting and cursing loudly. At first, I dismissed him. But then, he began spouting racial slurs and directly addressing other people. At that point, everyone was staring, and one man even engaged with him. It could have quickly escalated into violence, since he was verbally threatening people, and getting close to them or the edge of the platform. I pushed the customer assistance button so someone could help or at least be aware of the situation. The point of this story is that Thousand Waves' self-defense teaching (and being a karateka in general) has enabled me to identify potentially unsafe situations and spring into action instead of remaining a gawking bystander.