Surely if the OP had suggested puppies as being a potential kiddie-lure, and been rebuffed on a few occasions in Korea, he would have tried something else. I sincerely doubt that the term "easy" can be related to the actual lure. This is a load of olds codswallop frankly.
Alternatively he may with to try at a different time of day, perhaps just before anyone is likely to have indulged in some lunch, and thus leveraging the implied duality of usage for juvenile canines. Maybe around half 11 am? Though I'm not sure a) how that fits in with his schedule, or b) whether traditional British mealtimes are applicable to Korea, never having been there.
I've got a mate from Seoul though - maybe I could ask him?