Crass is just feeling holy because he's in a well-communicated, monogamous relationship and is forgetting that not every man is going to pause a woman whose hand is gently wrapped around his good brain, and ask her to relinquish papers of good sexual health, or henceforth, wait a fortnight to have tests produced so they may assume the sideways jitterbug. It works both ways, if you have something, you tell the other person. Don't wait to be asked, be responsible.
But all I really want to know is how pruny Rawb's fingers are this weekend after his undoubtedly soaked Friday night on plenty of fish.