David Bonderman and Alan Fishman got a big surprise yesterday from the federal government.

Washington Mutual shareholders approved a $7 billion infusion from TPG and other investors yesterday, thereby blessing — they had little choice — the return of Texas deal maker David Bonderman to the company’s board of directors. The decision came on a day when WaMu stock hit a 16-year low.

Washington Mutual said it won a victory Monday in one legal battle, but its legal war is far from over.

Some might call it good timing for Anne V. Farrell, who is leaving the Washington Mutual board of directors because she has reached the mandatory retirement age of 72. Washington Mutual, the embattled Seattle lender, is facing lawsuits, more big lending losses, and is the subject of takeover speculation.

Troubled Washington Mutual, the nation’s largest savings and loan, has seen its stock price nearly double from its lows over the past month. Takeover speculation has certainly helped, as have the Federal Reserve’s interest rate cuts.

But don’t discount the importance of the message chairman and CEO Kerry Killinger sent when he decided not to take a 2007 bonus that he had earned. Executives at other companies caught in the real estate mess — Countywide Financial and D.R. Horton, for example — have not set the same example of accountability.

Difficult times for a company mean difficult times for its board of directors.

And these certainly are difficult times for Washington Mutual, the nation’s largest savings and loan.

Because of losses related to subprime mortgage lending, the Seattle-based firm has closed operations, cut jobs, slashed its dividend, and watched the price of its stock plummet to its lowest level in more than 11 years, closing Friday at $13.07.