You threw razor blades into the walls in the US?

My bathroom in our 1950's ranch house has the original medicine cabinet with the slot for disposing of used razor blades

The video above shows the finding of razor blades inside a medicine cabinet If you notice one of these small slots in your bathroom cabinet

medicine cabinet razor slot slot - in - the- medicine

medicine cabinet with razor blade slot As some have stated it was a used single or double edge safety razor blade disposal where the blades dropped between the walls to be forever