If the headings are accurate and reliable enough, that could be a powerful navigation technique. Dutch is a member of the DPRG and has attended meetings regularly over the past year. His wheel chair-based robot always draws a crowd. If robots were people, they may have their own publications screaming about the latest calamity to befall their fellow machines. We'll just refer to it as the 'V' word.
Every robot is at risk.
Unlike human publications which would probably suggest an 'Anti Loose-Nut Law' or 'Equal Rights for Screws and Washers', we're going to actually find a way to fix the problem. No, not by filling the entire cavity of the robot with silicon rubber, but by using very common products found in most hardware stores. We'll start with the problem of V on fasteners. Screws and nuts are particularly susceptible to V and will eventually fall off if you don't take precautions. For this reason, aircraft have pins that prevent nuts from coming off.