After reading the article i think it is a irresponsible action. Furthermore she is an NTU student even though she doesn't have enough money to pay for the taxi far she should have thought of a more appropriate approached in handling such a situation. I felt ashamed and disgrace for our country, Singapore. This is because our country's education system is excellent with many people excel in their studies. However, many of this graduates only have the IQ but they are lacking of EQ therefore they will have such a behavior.
Singapore should raise the students etiquette and must be gracious. If you are unable to pay for taxi fare, you should ask your friends whom are in school to pay on behalf of you. This is better than leaving a empty bag with rubbish inside as an asset to prove that you will come back to pay.
Hence in conclusion, I think that everyone should be responsible for their actions. Learn to be gracious.