During launch a GM came down and hosted an event. The player who 'won' was given a truly unique ring which I promptly relieved him of and put it in my stash. The odd thing is I never used it, it was only a trophy.
Running with a rag tag bunch of new players through the highlands to seek the perfect spot for a guild tree, I stole the seed and felt instant remorse. Only I couldn't admit that I stole it so I handed it to a friend of mine and accused him of the wrongdoing. His protests fell on deaf ears.
Now I'm in a guild.. in the bank. You know how in real life hiding behind an open door is the oldest trick in the book? Well I did that and had gotten so deft at theft that I would steal from guild mates as they came in. What better trove than to target people full on loot? I think the resulting confusion was the best part. Though I was later found out and ran out of town.
We must understand that sandboxes work because the players will police themselves.
What are your stories of general grief?