Common sense would dictate that you if you're wandering around the Mission and you see some arrows placed on the sidewalk in masking tape, you shouldn't follow them. The likelihood that the arrows lead to a pile of money instead of a pile of human waste is remote.
These particular arrows led straight into a nearby tree. They terminated at a gilded milk jug dangling from a string.
Stenciled on the bottle was a recommendation that we drink its contents. Clearly the person responsible for these shenanigans had forgotten the age-old aphorism: You can lead a blogger to Mystery Liquid, but you can't make her drink.