So far as I can tell, this insurance page from Great Britain is entirely in earnest:
Public Liability Insurance for Morris Dance Troupes
We provide instant, on-line morris dance troupe public liability insurance quotes and cover from our panel of specialist liability insurers and our own unique underwriting facilities in the United Kingdom….
Why does a morris dance troupe need public liability insurance?
Every day morris dance troupes face the risk of legal action being taken against them in respect of their liability for personal injury or property damage arising in the course of their business activities. The awards that may be made as a result of a successful claim can be catastrophic but even the legal costs of defending the most spurious claim can cause severe financial hardship.
On the other hand, this page from the plaintiff’s side appears to have been written at least with a bit of tongue-in-cheek:
The no win no fee Elstow Morris dancing accident injury claim specialist
A little bit of Morris-dancing never hurt anybody; or did it? You might need the services of a specialist no win no fee Elstow Morris dancing accident injury claim solicitor, if, whilst strutting your stuff, you’re struck in the face by a Morris stick, or even a handkerchief, and break a bone, or sustain an eye injury. …
Launching a no win no fee Elstow Morris-dancing accident injury claim
Sometimes, shards of wood can splinter off the Morris-sticks and strike someone causing an injury, and sometimes small children can inadvertently get in the way, and sustain an injury. In cases like these, be it a Morris-dancer, or a spectator, or a child that is injured, AAH, the specialist no win no fee Elstow injury claim lawyer, can be called on to help to launch a personal injury claim. All troupes of public performers, be they acrobats or Morris-dancers, must have public liability insurance.