Yeah, I'm not liking the way thieving is working.
You pick someone's pocket. Almost immediately, you're confronted. If you try to say you didn't do it, you have to pass a DC 15 check. That seems crazy to me. Did they see the character pick the pocket? Why can't you demand they have proof? Why can't you say, "Hey, maybe you lost whatever that was an hour ago."
I get being seen and having to face a consequence. I even get it if a certain amount of value in gold coins is stolen over a certain period of time. In that case, folks might get a little more suspicious and reactive. But the way it is now, it just incentivizes save scumming, and I'm not a fan of that.
Personally, I'd like to see an overhaul done to the thieving system.