It depends how inclusive/exclusive we want to be, I suppose.
Things like bank robberies, accepting bribes do show up on sucess and those two are also meant to be somewhat "hidden" activities - at least your identity should be.
One thing with this idea - on a smuggling success, would all those involved have the full amount of jewels smuggled added to their /c stats, or would it be divided equally between those present, or perhaps the full amount would just be counted on the one that typed the command to smuggle?
Quick note: I don't think /c stats will be making an appearance in the up and coming 2.0 server, or will take a different form.