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Ken Osmond makes his first series appearance as that legendary creep among creeps, Eddie Haskell. As a welcome for the Cleavers' new neighbors the Donaldsons, June (Barbara Billingsley) sends Beaver (Jerry Mathers) next door to deliver a vase of flowers. Pretty neighbor lady Betty Donaldson (played by Phyllis Coates, best known as TV's first Lois Lane on The Adventures of Superman) is so touched by Beaver's gallantry that she plants a kiss on his cheek. As embarrassing as this is to our hero, it gets even worse when Eddie prankishly warns Beaver that Mr. Donaldson (Charles Gray) will most certainly "clobber" him when he finds out about his wife's indiscretion!