Saw someone mention having a wilderness bank and I think it would be genius, with a few twists.

1. The Bank would be above level 20 wild, maybe as Far East as Varrock (or somewhere else).

2. The sign above the door would read "Player Killer Alley"

3. This one could be polled, but it would be cool for the bank to serve as a temporary safe zone.
     
        3a. What I mean by that is if there is a way to code that inside the bank, you're only unable to be attacked for 5 mins.

        3b. After 5 mins you'd be kicked out the bank, or simply be able to be attacked where you stand in the bank.

        3c.

4. Perhaps the most vital aspect of this bank ....NO teleporting or logging inside of the bank. The rule of the Alley.

Feel free to post other ideas or modify mine if you like. I think this would be a cool dynamic in the wild.