Yeah, this will do the trick.  Just a slip here, and tuck here... heh - this is going to work out just fine!  <A broad smile beams from the chained goblin's face.>$B$BHere you go, you're all set.  Remember- this isn't the most securely fashioned item in the world.  You'll have ten minutes of use before it falls apart, and then you're not going to fool anybody!  Try using it just before you approach him, and remember... it only will make him think that YOU are an ally - not your group mates!