To reduce his tax liability, Michael Chen, the owner of Fune Ya Japanese Restaurant in San Francisco, hid cash transaction records in 26 boxes labeled "Seasoned Octopus" in a crawl space under his restaurant and pretended they were never made, according to the IRS.

While he had an encrypted spreadsheet showing total sales of nearly $2 million between 2004 and 2006, he only reported sales of a little over $500,000 on his tax returns. Chen was sentenced to almost three years in prison in January, and he must pay restitution of $459,105.

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