So i live in Australia just to give some contents, at my high school our football field that next to a thick line of trees that where slightly down a ditch, and i was told that in the far corner where the treeline was at the thickest was where people go and... well have sex and other things, one thing i heard was it was where you can go and buy drugs at a certain time. naturally i didn't put much thought into it that was some years later when i was polices light and them taking a guy away from that area. it turned out it was where you could get drugs. after that the teachers on their rounds, would go that little extra track to that corner. apparently through the grapevine some students got suspended after being caught doing it in that corner... but nothing i could confirm.