I didn't ask for a sermon
When you have asked someone what something is and they respond by giving you more details of it, when only you wanted to know what it is.
Man1: Do you have a spare cigarette?
Man2: No, but smoking causes cancer and it smells and it's bad for others from second smoking and you will die.
Man1: I didn't ask for a sermon I asked for a cigarette.
Man2: No, but smoking causes cancer and it smells and it's bad for others from second smoking and you will die.
Man1: I didn't ask for a sermon I asked for a cigarette.