I was just thinking this exact same thing as I reviewed the latest in this case.
Honestly, if there is an open, deep hole/ shaft/ well/ pool/ anything, anywhere, someone will fall into it!
So I agree with the possible drunk/high but equally just an urban explorer, testing what it's like to be out in the world after dark, when no one else is around, and when you have to use all your senses other than sight, which we are totally dependent on. Including bare feet.
IMO it's the kind of thing adventurous young men are especially prone to do - climbing a mountain, exploring a deep cave, etc. But if you're in university, you might just go out and explore near your place one night. We only hear about it when something goes wrong.
JMO