A conductive object slipping between the plug and outlet could bridge the gap and cause an electric shock or spark. The upside-down outlet orientation, with the grounding pin on top, helps reduce this risk by ensuring the grounding pin connects first and acts as a shield.
Despite this, partial plug insertion remains a concern regardless of outlet orientation. Always ensure plugs are fully inserted and cords are in good condition to minimize hazards. If you notice outlets that feel loose or plugs that do not fit securely, consult a qualified