Border humpers. Anyone who's ever raided a town, or fought at any border has had to deal with them to an extent. This just makes the fight boring, drawn out, and unfair. As a counter-measure, I suggest that all no-pvp zones should be reinforced with a time barrier, so that everyone leaving will have to wait a time of 5-30 seconds before re-entering no-pvp zones. This would encourage better battle tactics, not the freaking hokey-pokey. I understand that timers on every person leaving a no-pvp would increase lag on the server, but maybe it could just be if you take damage upon exiting? In the comments, please expand on this idea, as many great minds will surely perfect this concept.