Missing Out On the Subway

These are email messages I exchanged this morning with a friend of mine.

Me: Hi, L, Did you take Y line subway going south this morning? Did you wear a black hat? I thought I saw you...

LL: Yes, that was me! I saw a lady wearing black jacket standing beside me. I was wondering how come her face looked so familiar. When I turned around to have a better look, you already moved away. I could only see your back...

So she called me and we started sharing our child rasing experience, basically how the punishment gets excuted.