That Yorkie Property thing is hilarious! You know, Isla is good if she has something and I say "drop", she will right away. I taught her that at the same time as "sit." But with the 4 kids under 6 years it's really hard to monitor all their toys all over the house.
And doesn't it seem that all our kid's toys contain 60+ pieces for each toy?????

I think the guys at the toy manufacturing company get together and laugh their cans off for doing this.
Anyways, my point is that it's too much to expect the kids to constantly pick up after themselves all the time. And Isla capitalizes on this! Though she's pretty good about listening when caught, it's catching her before the item is garbaged.
And, yes, paper seems to be a favorite! What's with that? Is it the noise? The texture? At least you can hear it when she has some.
I'll just have to hope that she'll get the point over time that only the toys in her basket are hers for the chewing...