Mischief Night, UMM HMM! I remember when the UMM HMM people would burn their own city to "celebrate" the holiday of vandalism.
https://en.wikipedia.org/wiki/Mischief_Night
Historical background
The earliest reference to Mischief Night is from 1790 when a headmaster encouraged a school play which ended in "an Ode to Fun which praises children's tricks on Mischief Night in most approving terms".[2] In the United Kingdom, these pranks were originally carried out as part of May Day celebrations, but when the industrial revolution caused workers to move to urban areas, Mischief Night shifted to November 4, the night before Guy Fawkes Night. According to one historian, "May Day and the Green Man had little resonance for children in grimy cities. They looked at the opposite end of the year and found the ideal time, the night before the gunpowder plot."[2] In Germany, Mischief Night is still celebrated on May 1.
Oh may day idolatry, lovely.