Anyone, my lord, who indulges in too-close contact with - erm - questionable ladies runs the risk of contracting such a disease as you name. Aristocracy, or charming personality, are no respecter of persons. I do extend the hope and desire, my lord, that you shall never suffer the pain and discomfort of the ailment that you mention. The only defence against such sicknesses is total abstinence from the type of contact that I have spoken of. Perhaps a few more glasses of champagne would suffice as an alternative to that questionable type of pleasure?