Hi, I used to have a real problem with Otis picking things up on our walks. He would have mouthfulls of kleenex, coffee cups, basically anything that he could find - he finally learned "Leave It!" just this summer and that is working wonderfully at the moment - he's a golden so will basically do anything for a dog biscuit. This is just a shot in the dark but it could be that Kia simply isn't that food motivated...maybe there is something else (a favorite toy?) that you could use to teach her the "leave that nasty things where it is" command?? Good luck!! She's a beautiful dog!