No one had ever explained that to me! 😱😱

If a metal object—such as a picture frame, tool, or loose screw—falls between the plug and the wall, it could potentially contact the exposed metal prongs.

If the grounding pin is on top, the falling metal object is more likely to touch the ground pin first instead of the energized hot conductor.

Because the ground connection is designed as a safety feature, this orientation may reduce the chance of creating a dangerous short circuit.

Although this situation is relatively uncommon, some electricians prefer the added layer of protection.

Hospitals Often Use This Orientation

If you’ve ever visited a hospital, you’ve probably seen many outlets installed with the grounding hole facing upward.

This isn’t because hospitals have different electricity.

Instead, many healthcare facilities follow engineering standards or institutional practices that favor this orientation for additional safety around sensitive medical equipment.