I suggest we add Proximity Sensors to SL.
This could be a multi block or just a sign [Proximity] . When a ship moves within a number of blocks of another ship a text Warning would open in chat. This distance might be programmable?
Right clicking the sign would open a gui with clickable target choices and once chosen would open a private chat between the initiator and the target. If the target player responds /accept then his ship would Lock and be unpilotable for ten minutes. As well the attackers ship would not be able to harm the locked ship.
What needs more thought, how does the attackers board? What permissions does he get over the target ship? Can melee begin?
Any care to add thought? (Be brief and concise please)