I remember the days of beta where the guards only had 100HP and could be killed by monsters or regular players. In specific I remember finding a blade spirits scroll and casting it (when scrolls could be cast by anyone) on the border of Vesper towards Cove. Many many guards and players died quickly. I managed to escape and hide until it went away.

I then took a dead guard's plate, cape and halberd equipped it. Looking exactly like an NPC guard I wandered around the city tricking other players. You could enter combat stance and everyone would flee.

Funny to think I can still vividly remember this 18-19 years later but can hardly remember the plot of many of the recent AAA titles.