Always use your common sense while doing work
Nonu was a foolish servant. One day, his master called him and said, “Nonu, go to the market and buy a bottle of oil. And listen, dare not bring anything else except the bottle of oil.” Hearing this, Nonu went to the market and soon returned with a bottle of oil. On seeing the bottle, the master asked Nonu, “Where is the soap which was an offer with this bottle?” Hearing this, Nonu replied, “Master, the shopkeeper was giving me the soap. But as you had asked me not to bring anything except the bottle of oil, therefore, I didn’t bring it.” The master was surprised.
Moral: Always use your common sense while doing work.