Thread-bump waiting for the next shoe to drop in 2012. The BRK purchase accounting fiasco.
SHORT BRKb, buy puts, sell R/Rs.

Because bragging on the internet will have a positive expectancy lol
Given the size of the transaction, I'm sure the auditors reviewed the marks thoroughly.
He prob had some lea way in marking the position and took all that he could. Wouldn't you, if it were legal?