Two months after the burglary of his personal residence, Eric is audited by the IRS. Among the items taken in the burglary was a shoe box containing...

Two months after the burglary of his personal residence, Eric is audited by the IRS. Among the items taken in the burglary was a shoe box containing approximately $50,000 in cash. Eric is the owner and operator of a cash-and-carry liquor store. Eric wonders why he was audited. Can you help explain?