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Oubliette rule
(slrpnk.net)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
I love how whenever humans make or find a deep hole it inevitably starts getting random shit thrown in it or actual shit. It usually works unless its the town of Centralia Pennsylvania, and even then it would have been fine if the human tendency for setting trash on fire was not followed through.