I was returning home late, after midnight. It was very cold outside, and the streets were empty. I saw the last bus to home approaching, and I started running towards the station, hoping to catch it.
As I was about to cross the street on the run, I heard a firm and clear voice: "STOP!" I stopped instantly. The next second, another bus from the opposite direction passed by me in high speed. The driver hadn't seen me I guess, because there was no honking. I froze in fear: hadn't I stopped, it would have crushed me.
I looked around to see who had called me, but there was no one there. I missed the bus home and I had to walk the whole distance (about 3.5 km). Pretty unwise to walk alone at night, I wouldn't do it again; but somehow, I felt protected that night. I reached home safely.
I talked to a priest about this, and he said it was my guardian angel's voice.