I have an old member in my team. Usually we do not expect any interesting idea to come from him. But one day, he made a very useful and interesting remark. This prompted one of my friends to quip, "There is life in the old dog." The comment was made in good jest and everyone in the team including the oldie laughed it off.
Is it possible that this remark could have been incendiary at some other time? I mean, does this phrase or saying carry a sense of ill-will in it?