The Japanese government on Friday urged the public to refrain from excessively hoarding disaster kits, as some items have gone out of stock due to a surge in demand following a megaquake advisory issued by authorities the previous day.On online shopping sites operated by Amazon.com Inc. and Rakuten Group Inc., products such as drinking water, emergency toilets and preserved foods quickly rose in the best-selling rankings. Some items have already sold out.At some stores of DIY store giant Cainz Corp., water, backpacks with disaster kits and goods to prevent furniture from falling over have s…READ FULL ARTICLE