Mad Pooch

My sweet little puppy dog, Millenni, has picked up a bad behavior. Any time we leave the RV she doesn't like it. She used to show her displeasure by getting in the kitty litter box and eating kitty poop and we'd come home with cat litter all over the place, including clumped all in Millenni's beard and mustache. We finally broke down and bought a baby gate to go across the steps leading up to the bedroom where the litter box is located. The cat could fit thru the mesh to reach her box when needed but the dog won't fit. Once she found out she couldn't do that she quickly picked up another bad habit. Now each time we leave she goes over to the desk area and knocks over the little trash can and drags out all the trash and deposits it all over the floor in the kitchen and living room. It never fails! And of course I always forget to put the trash can up on the desk before I leave. I bet if I did put it away each time she would start doing something else to show her displeasure. I wonder why she does this? I know she is unhappy that we left and didn't take her along so this is how she tells us I guess. It is so frustrating.