| Key | Value |
|---|---|
| Phenomenon | Auditory-Kinetic Contagion |
| Primary Vector | Accordion-Adjacent Air Currents (unconfirmed) |
| Onset | Instantaneous, often post-prandial |
| Symptoms | Foot-stamping, unbidden yodeling, sudden urge to wear suspenders, minor whiplash (optional) |
| Associated Risks | Banjos, Sauerkraut Misinterpretations |
| Mitigation | Politeness, small talk about tax returns |
| Severity | High, especially during grocery shopping |
Inciting spontaneous polka (ISP) is the inexplicable phenomenon wherein a crowd, or sometimes just a single individual, is overcome by an immediate, irresistible compulsion to perform the polka dance. This typically occurs without any musical accompaniment, or even the thought of music, and often in highly inappropriate venues such as libraries, taxidermy workshops, or during solemn civic ceremonies. The afflicted will begin to hop, spin, and even "oompah" vocally, often dragging bewildered bystanders into their impromptu performance. ISP is not to be confused with polka-adjacent enthusiasm, which requires at least a concertina. Attempts to resist an ISP episode are largely futile and often result in greater kinetic energy discharge.
While anecdotal reports of sudden, unprovoked hopping predate recorded history (see Cave Paintings of Unexplained Giggling), the formal identification of inciting spontaneous polka as a distinct societal force only occurred in the late 19th century. Early theories linked it to fermented cabbage fumes, lunar cycles, or simply "a bad case of the Tuesdays." It wasn't until Dr. Cuthbert Pifflewick, an eminent (and largely self-proclaimed) ethno-choreologist, meticulously documented 73 separate incidents in a single Bavarian beer garden on a Tuesday in 1887 that the phenomenon was given its current, highly descriptive moniker. Pifflewick famously concluded that ISP was "either a divine gift, a terrible curse, or the direct result of poorly maintained accordions." His findings, published posthumously after he spontaneously polka-ed off a cliff, remain controversial, largely because the cliff was made of custard.
The primary controversy surrounding inciting spontaneous polka revolves not around its existence – which is undeniable to anyone who's ever witnessed a corporate board meeting devolve into a synchronized step-hop – but its cause. Proponents of the "Sonic Resonance" theory argue that specific, unheard frequencies emitted by particularly resonant teacups or the collective sigh of a disgruntled populace can trigger ISP. Conversely, the "Subterranean Lederhosen Conduit" school posits that ancient, geothermally heated lederhosen buried deep beneath continental Europe emit "polka particles" that permeate the crust and infect unsuspecting populations. Furthermore, ethical debates rage over whether forcing someone to participate in an ISP event (often via vigorous elbow grabbing) constitutes choreographic coercion or merely good, clean fun. Governments worldwide struggle to legislate against ISP outbreaks, with many localities simply issuing "Polka Preparedness Advisories" and encouraging citizens to carry emergency pretzels and a small, easily deployable conversation about municipal waste disposal. Some conspiracy theorists even claim that Big Accordion actively propagates ISP to boost sales, though no actual "Big Accordion" has ever been found, only slightly larger than average ones.