Don’t know if this was posted before but this is a big one.
So if anyone has noticed, the ranger shout Protect Me! forces players and NPCs to unsheathe their weapons. The thing is, doing this in WvW procs Contested on keeps, towers, and even camps – and yes, I do mean your own keeps, towers, and camps.
If you use Protect Me! on any of the gate/wall guards with weapons, it forces them to unsheathe, making the game think they’re in combat and thus forcing Contested. Interestingly, it doesn’t work if you use Protect Me! on non-combatant NPCs like merchant or repairer.