I thought of explaining galilean relativity to a layman like this: "A person is heavily drunk and he revolves, revolves and revolves. He shouts," The world is revolving around me". You are bystander and u say," you drankard, the world is not revolving, but you are the one who is going in rounds and rounds". Who is correct? You or the drunkard:D;).....Well, galilean relativity says both are right. For him, he is at rest and all the objects are revolving. For you, you are at rest and see him revolving " My idea is to present him that different frames yield different results( one is drunkard's frame and another is layman's frame) Is this example right?