A well known member of the intelligence community has alerted me to a new threat, "manicorns."
Typical Manicorn Park Scene
Experts suggest that manicorns are related to the horned predators we're familiar with today, which are possibly mutations of the medieval unicorn or another species altogether, such as the Baiste-na-scoghaigh of Scottish folklore.
If you google manicorn you'll find some 69,000 results. How many of these are in San Francisco and Austin is, at present, unclear.
Mind how you go,