Hole Lot of Lettuce

S1 E3: Jerry discovers a good use for his math when the Raiders find holes in the lettuce leaves he is picking for Dad. Raiders first blame Nicole but are quickly convinced this Munching Monster must be captured before he eats the whole garden. Raiders to the Rescue! Which results in all the lettuce accidently being ripped up. When the Munching Monster turns out to be garden slugs, Jerry is delighted to see one up close and tells them all about slugs. Dad is not quite as delighted when Jerry brings in all the lettuce, but promises to rid their garden of slugs.