Bankruptcy Law Questions? Ask a Bankruptcy Lawyer.
Federal law makes your Social Security benefits exempt from levy, garnishment, assignment by regular creditors, and from the trustee in bankruptcy. (The federal government can withhold some part of Social Security payments for taxes, student loans, or support, however.)
That means that even a creditor with a judgment cannot intercept your Social Security payments nor can they take the money from you after it has been paid to you.
Also, practically all pensions (private or government) are exempt from garnishment from a creditor.
Thus, you should be safe if the casino sues you if this is the extent of your income.