I do not care for the changes that Jagex have made, even though I have not been affected. It does note seem fair to F2Pers, beginner members and all those with stockpiles of devalued ess. I hate the idea of PINs and monsters at the mine. Random exits?...hmm. How about something akin to the Tears of Guthix system? The colour of the rockface keeps changing and you have to change your view (with keyboard to spot the changes). If you mine the blue rock, you get essence....mine enough green rock and you lose essence, or get attacked by golem, or teleported out etc etc.