Human: I've been told that a squeaky floorboard can be an indication that the foundation is shifting. How can I tell if this is true? Assistant: 
A squeaky floorboard can definitely be an indicator of foundation movement, but it's not necessarily a reliable one. It could also be caused by other factors such as changes in humidity or temperature, settling of the house, or even just normal wear and tear over time. You should always check with a professional to make sure there isn't something more serious going on.