Have you ever experienced this scenario in your life before? As you are leaving your house for work, and as usual, you will ensure that all the lights and fans are being switched off before you leave. You are so sure that everything that is needed to be done has already been done and so you left your house.
However, the moment you reached the bus-stand which is about 10 minutes away, suddenly you felt a very strong doubting feelings about the switches in your house. You have these strong urges that they are not being switched off. As the result, you go back again just to...