My sister pulled a stunt like that when she was 17, a Queen's Ranger in the Guides. They were camping in a forest in the Southern Uplands and, evening time, they hear this wailing, most of them proverbially shittting themselves.
Not my sister and her mate, Fiona, and one other - off they go and they find this Bhuddist prayer tent and they were all inside intoning their mantras....so what do they do but undo/pull out all the guy-ropes so that the tent imploded - and then scarpered.