Is being Truthful necessary?
If someone asks you something would you say the truth or say a Lie?
Let us take for example, you have an assignment due and a friend from school told you that he will help you with the assignment as you are struggling to finish. And the time to meet arrives, you are waiting in the library and looking at the clock. Its 5min past the meeting time and you are thinking may be he stopped to get coffee or someone stopped him on the way. It's 15min into the meeting time and the friend still doesn't show up. You give him benefit of doubt and still stay in the library as you can finish your other assignments.
The next day you see this friend in the class and you walk up to him and ask him if something happened and if he is doing well. He says "Everything is fine!". You ask him about the meeting and he laughs and says "I was just joking, I was not planning to help you". Would you like such an answer?