Clearing things up a bit
What I meant as far as a copy?the victim never looses the item, and the thief never really has said item in a usable way, it must be fenced (sold to someone who deals in stolen goods).
What the victim would loose is use of an item for some amount of time depending on where it is equipped.
Another thing is, 99% of the items a character has are game items, sword, armor, stat boosting items, money?but one can assume that the character will have more things then what they have in ?game terms? this is the area we (as thieves) can frolic in. The only time we will get a usable item from a pickpocket/burglary would be as part of a quest, or from certain NPC groups that are out there to motivate thieves.
Just to make even more evident, Pick Pocketing is not the mainstay of any master thief?it is his/her training.
It is what early or small time thieves might do, the idea of pick pocketing some ?ogre king? in my opinion is stupid and something role playing games have truly messed up in doing. What pick pocketing in the high end game would be a very selective (pre combat disarm) where said NPC then cannot use his primary weapon or is in some other way of lessened effectiveness. It would not be a (thief gets free stuff as some other group are in combat) this would be the thief types version of a debuff, or if not a thief and was an assassin, the character would backstab the opponent instead.
I think a major issue is the role of thieves in the game. I have many lofty plans for them at the high-end, but at issue is how they should get there. Where and when do they acquire the skills needed to pick a guild house lock and pilfer through the guilds stuff to steal their member list, or their standard?.or some other thing important to them.
Or how can we justify a spy, and saboteur getting into a guild house and opening the front door. All while not allowing it to be a 3 minute jump over the fence and do it type thing.
In short, supply the thief types with many uses, fun content, and a feeling of a breed apart, and useful in a group. But I would not want them to be the ?useless till levels X when they out damage everyone? like in some other games.
Of course we also need to remember that there will be mages and fighters that have certain thief skills and that needs to be monitored?.but don?t think of pickpocketing and the mainstay of the thief type.