1. An unintentional crime committed by Lunpo: The defendant’s lawyer can argue that in this case, Lunpo did not intentionally commit the act of throwing an object from a high altitude. The object fell from a height due to the abused grandmother's distraction, hand error, or other external factors. Highlighted by lack of malice and premeditation.
2. No serious consequences were caused: The defendant’s lawyer can point out that there were no serious consequences such as casualties or property losses in this case, and provide relevant evidence to support this view. By showing the facts, it can be argued that his behavior does not constitute the necessary harm elements of a criminal offence.