Eddie Haskell Under Oath?

Ken Osmond, the genius actor responsible for character Eddie Haskell on "Leave it to Beaver", has sued the Screen Actor's Guild for his share of foreign royalties.

Why would you choose him as your lead plaintiff in a case where multiple plaintiffs have an interest? Won't they be able to call his credibility into doubt by bringing up the time he convinced Beaver that Mr. Donaldson was going to kill him for accepting a kiss on the cheek from his wife? And what about the time that Eddy cheated in a game of chess with Wally?

Those of us who watched the show religiously could undermine his credibility easily enough.