in your face + or - tres feet
One would have thought the Japanese, famously crowded on a narrow strand of land bordering Mount Fuji, would be the most comfortable of all peoples in close proximity to one another. Instead, they are, perhaps, the most respectful of all peoples of individual privacy (and preserving 'face'). Even the homeless will not intrude by begging.

Any theories why it would be Hispanics and not Japanese who are so comfortable at close quarters? Could it be their "hot blood"? Consuelo?