Last month, I withdrew some money ¡ª ?100,000 to be precise ¡ª from an ATM near Tokyo¡¯s Shibuya Station.

I was on my way to a meeting and was in such a hurry that, while remembering to grab my bank card and receipt, I completely forgot to collect the cash from the machine ¡ª 10 crisp ?10,000 notes.

It wasn¡¯t until I was paying for some pancakes after lunch that I realized my wallet was considerably lighter than it should have been and retraced my steps.