garren
Arcane
A problem with pick pocket is that it overlaps with so many other useful skills or gameplay mechanics already. Usually if you're a thieving character, then pick pocketing keys and stuff is useless because you already know how to pick doors/safes better anyway. Or why steal stuff from hostiles if you're gonna kill them anyway. The only unique thing for pick pocket that I can think of in games is the planting of bombs/evidence, or get a few extra items from a friendly NPC, so usually there are better skills to invest in.