My dog takes his chicken pieces and buries them under the couch cushions!

Sometimes this means you are overfeeding your dog. He is saving the extra for later. We notice that our pregnant females do this sometimes (not under the couch cushions), they hide an extra chicken leg quarter under their blanket or in the corner of the whelping box.

Some dogs just like to eat on their own schedule. I have taught my dogs to eat when the food is presented or lose it. For house training this is very important and also for dogs being trained on a regular basis. I manipulate my dog's hunger to my benefit for a reward system in tracking and obedience.

I personally don't like the idea of a raw chunk of meat being stashed somewhere in my house. My dogs are fed in their crates and if they chose not to eat right away (in the first 15 minutes or so after I put the food down) then I take it away until next feeding time. They learn in a hurry to eat when they have the chance.