Throughout the risqué Leisure Suit Larry adventure game series, designer Al Lowe has made hundreds upon hundreds of attempts to squeeze humor out of, for lack of a thesaurus, pooping and boning. Not all of them work. Some might even say that none of them work -- though, to Mr. Lowe's credit, you can't always count on everyone getting or appreciating a joke, especially when it begins and ends with a toilet. Personal taste and the subjectivity of humor both play an unpredictable part in a joke's effectiveness. But not in these six cases.