An event cluster

There's much talk of disease clusters. Why not event clusters, and a center to which to report them? "Cluster events are groupings of a particular disorder or a class of disorders that appear unusually frequent in a place." Perhaps the reports would be happy-event clusters, but probably the preponderance would be of unhappy events. When a dental emergency is the least unpleasant occurrence at a particular location, nothing's going well! Well; there are plenty of things that could be said, but not one would be very pleasant. I hope to live to vote!