Engineer X works for a forensic engineering firm and is asked to serve as an expert witness in a case involving the professional services rendered by a manufacturing company that employs Engineer Y as the director of engineering. During the trial, Engineer X, who possessed expertise in safety engineering, testified that the manufacturing company's safety practices were inadequate and may have contributed to the injuries suffered by certain employees. Several months later, Engineer Y makes comments to engineers and others accusing Engineer X of acting unprofessionally and unethically, alleging that Engineer X was biased because he ignored important information in his testimony and only focused upon circumstances that were helpful to his client. Engineer Y offers no substantive support for his allegation. Case Question: Is it unethical for Engineer Y to accuse Engineer X of acting unprofessionally and unethically because Engineer X testified in the manner described? While answering the question, refer to the Code of Ethics