Brain stimulating pills

Feeling listless, I bought some expensive "brain stimulating" pills at our local health food store, but I didn't bother to read the label until I got home."Oh, I can't believe it!" I exclaimed in complaint to my husband. "This is just rosemary extract!""So?" he said."So I can't believe I paid so much for something that's growing wild all over the backyard!""See?" he intoned. "You're smarter already."