Loss of inheritance right means that the heir has been disqualified from inheriting the inheritance in accordance with the law because he or she has committed a certain crime or other illegal act against the heir. According to the above definition, what does the following behavior not cause the loss of inheritance right? ['In the usual chat, Xiao Zhang mentioned that he did not want to inherit the legacy left by his father.', 'In order to monopolize the inheritance, Xie Qiang threatened and insulted his siblings, forcing them to give up their inheritance rights.', "At the time of his uncle's death, Xu secretly modified his will that his uncle had just made.", 'In order to be able to take sole ownership of the family business at an early date, Xiao Li assassinates his stepfather.']