history: Once, I was walking home from work and it was late. My street was unusally quiet and there was a man walking quickly behind me. I was very scared. He ended up passing me but he whispered a nasty word as he walked past.  I was walking home from work late a few weeks ago and my street was unusually quiet.  What happened? Well_comma_ there was a man walking really quickly behind me and there was no one around. 
current: Sounds a bit scary.  What did you do?
next: I panicked and he caught up. He walked by quickly and said a really nasty word in the creepiest way. But he kept going.  My knees were shaking. 