Darwin understands that it is no longer Politically Correct to use the term retard, but feels that the term is sometimes justified when used to point out how inappropriate use of equipment (i.e. trying for a wheelie on a snow machine in the grass, no less) very often results in crushed genomes leading to retardation of the retard after the fact. Very scientific.
Natural selection deems that some individuals serve as a warning to others. Who are we to disagree? The next generation, ever and anon, is descended from the survivors