Rosie's pretty good at drop when it comes to balls and toys and stuff. But if she grabs something she's not allowed (generally a pair of my pants from the washing basket, or the bag of dog poo I've just picked up from the lawn - grrrrrrrrrrr!) she goes mental and I end up really annoyed, chasing her all over the garden and shouting. Now, I realise that this is not the way to get a dog to give somethign back to you (and I'm pretty sure my neighbours are peeing themselves laughing at me!), but generally that doesn't help me at the time.
The other day, I recalled this 'stare' technique and did it when she grabbed something and ran off. I made myself as big as I could and really looked down at her with big starey eyes and said "Drop It" in a big deep voice - and she dropped it!!!!!!!!! You could have knocked me down with a feather. I'm saving it for the special occasions now, but I'm very glad to have it up my sleeve!