[quido]

This can be at least partially explained by the specifics of p99's aggro mechanic. Proximity aggro is checked every few seconds or something, so depending on how your proximity intersects these check ticks, the mob might remain unaggroed for an unnatural amount of time. I've straight up darted between two mobs guarding a doorway without aggroing either.

I think I remember Uthgaard explaining to me once that before he had changed something that zones checked for aggro way too often and that this was a reason we had nasty zone lag with lots of players in a single zone.