So it looks like Cooper, the new puppy, could be a sleuth and find all the missing (empty) pineapple cans. This morning he made a bunch of noise and pulled out a spoon and pineapple can lid from underneath the bathroom fixture.
Next I am going to have him smell an empty can and then I will show him pictures of my two kids and then have him smell the pictures. I will have sprinkled pineapple juice on the photos so he associates the kids with the juice. Then I will set the kids up and buy a dozen more cans and if Cooper comes through we may add Holmes to his last name.