One day I was returning from my daily run and I was about to cross a busy street - slow traffic, but busy weekend street. I was about to cross when I noticed near me this old man. I realised that in two or three steps I would be able to do it easily as soon as a gap between cars would happen but he clearly would not be able to succeed as fast as I would. He would stay there for several minutes until some kind driver would stop, which didn't seem to be the about to happen. I did not think twice. I put myself in front of all those cars who were obliged to stop and waited until the man could cross the street safely. My bf at the moment, who was with me, but had crossed the street before and was waiting for me - later said "I was sure you would do this".