Okay, we have a 2nd level Fighter with a longspear and we have 3 1st level Goblin Rogues. The goblins try to tumble to avoid the AO from the longspear, they make it. They know that the Fighter will cut them down if he can pull out his two weapons (amb/twf) so they try to pull them out instead.
1. Touch attack and pickpocket?
2. Pure pickpocket?
3. Something else?
I lean towards pure pickpocket since you don't need to make a touch attack to normally do pickpocket, but that's not in combat so I'm not sure.