I don't have any good stories, but I have heard someone say that, in an emergency, she laid down on the ground and started wimpering. Pup immediately "came" to investigate.
I know what you mean about the being torn about rewarding them for coming to you when they've been barking. Joey has gotten ALOT better following a "quiet" command, but there are still times... Now, I do one of 2 things in this situation. Instead of calling him to come (which gets a reward), I go pick him up and bring him in. Or, if I do call him to come when he's barking, he still gets a treat, but it's a lower value treat (a piece of kibble as opposed to a tiny bit of cheese).
The link I posted actually doesn't use a clicker to teach come. Instead, it urges you to first say "come" when they are already coming to you (and reward for it). Then, gradually work up to calling from across the room, from another room, etc. Have a look. It worked well for us.
http://www.clickersolutions.com/art...2002/recall.htm