Sometimes nudity is gratuitous. We just live in a society where everything goes.
I'm not for gratuitous nudity but if there's humor I don't have a problem.
To want friendship is a great fault. Friendship ought to be a gratuitous joy like the joys afforded by art or life.
When a person tests positive for HIV it is not a test for the virus itself but for antibodies to the virus and the test is not able to distinguish between HIV antibodies and a multitude of other antibodies. Many conditions can lead to a false positive result including flu shots hepatitis and pregnancy.