You may recognize yourself, or someone you know, in this this infrequent field resource and spotting guide on concert sociology – the Taxonomy of Rock.
Medicinae Saltator — Dance of Drugs (Acid Dancer)
Medicinae Saltator, or acid dancer, is that guy — and 99% of the time it is a guy — whose dancing, while without hint of self-consciousness (and I do have to give him credit for that part) is a mix between drunken stumbling and the flailing of a person drowning. Even with careful observation it is difficult to discern the rhythm, or even the song, to which he is grooving.
It should be noted that, despite the pharmaceutical base to the genus name, not all acid dancers are drug users. Encountered in the wild, most are harmless, even those under the influence of chemical enhancements. However, close proximity to the medicinae saltator is difficult as most exude a pungent oder, commonly a mix of patchouli, body oder, and clove cigarettes or marijuana.
Given the medicinae saltator’s extemporaneous and unpredictable movements, their lack of awareness for their own surroundings, and limited personal space found in a typical concert environment, the greatest danger in MS encounters comes from the occasional trodden foot or other minor jostling. Examples of normal MS habits can be found in film/video footage from The Woodstock Encounter of 1969 or Grateful Dead shows from 1966-present.
The greatest risk from the medicinae saltator does not stem from a normal concert environment, but rather uncontrolled social gatherings that can quickly degenerate into a tympana circulo, or a hippie drum circle.