Answer: When you want to create a more personalized, creative, or functional space.
Explanation: There are some general rules for furniture placement that can help you create a balanced, comfortable, and attractive living room. For example, you should always allow for flow, balance, focus, and function. You should also avoid pushing furniture against the walls, creating dead space in the middle, or blocking windows or doors. However, these rules are not set in stone, and sometimes you may want to bend them a little bit to suit your personal style, taste, or needs. For instance, you may want to break the symmetry of your furniture arrangement to create more visual interest or contrast. You may want to move your furniture closer or farther apart depending on the size and shape of your room, or the mood you want to create. You may want to experiment with different angles, heights, or shapes of furniture to add some variety and character to your space. You may also want to consider the function of your room and how you use it. For example, if you have a dining room that doubles as a home office or a playroom, you may need to adjust your furniture layout accordingly. As long as you follow some basic principles of design such as harmony, proportion, scale, and balance, you can bend the rules for furniture placement to create a more personalized, creative, or functional space.
Hope this helps, and have a great day! =)