That's Sexually Transmitted Diseases for the uninitiated.
I have recently been informed, by an acquaintance of the female variety, with whom I engaged in a few bouts of illicit carnal relations, that she has tested positive for an S.T.D.
What advice can forumites offer in this matter? Have you had any experience of these diseases? Which are the most fun to have, which possess the most street cred and which are most to be feared?