I go to many metal and other shows a year. A 3-day outdoor festival in the woods with hundreds of tripping manchildren moshing in the rain resulted in a very muddy shallow depression, not a landslide. I have brief cameo in the video below. Want to see a hundred hippies sitting in the mud pretending to row ancient Roman galley?

https://youtu.be/X-BtJBDi8OA?si=Gtzeibmuokx39KhP