I don't know why my friend got angry.

When my friend was talking to me.

(pixabay free image)

My friend: Every end is not the end, this may be the beggining of a new things.

Me: you are right my friend. I have seen that after end of a person, means a murder, a film based on murder mystery starts.

My friend: Oh! you coundn't understand.

Me: Yes, because I am sitting above. I am not standing under.

I don't know why my friend got angry. He slapped me and left. Did I do something wrong? Please tell me friends!