I’m watching TNG s4e26/s5e1 “Redemption”. There’s a scene where Worf’s honor is restored, by grabbing and bloodying Gowron’s d’k tahg. This got me thinking, Klingons absolutely adore blood rituals. Presumably, 24th century medicine makes contracting an STD a trivial issue. However, 21st century equivalent medicine would be far more limited.
You think gowron has crazy eyes?
Those are actually really massive crazy white blood cells!
They ran out of internal threats so they’re seeking them from the outside, makes sense.