We were in a karaoke bar. There were not too many people there. Something caught our attention: a guy was teasing a young woman. He seemed like a bull under the influence of drugs and was around 130 kilograms. Nobody dared to say a word, not even the woman's partner. Things were getting worse and the guy lifted his hand, threatening her. I don't know what went through my mind; it was beyond what I could understand. I told a friend of mine, "Let’s go.” And there we went, not knowing what the heck could happen in the next few minutes. There was no real harm, just shouting and some pushing. Finally the police arrived and the whole the thing was over.