I think Hudson may have a little O.C.D. (like both his parents.) He has to pull every pillow off the couch, love seat and side chairs. If you put them back, he immediately pulls them down again. He also does this at his Nana's house.
Look how happy he is when his task is complete! I wouldn't mind the mess, but he continually trips over them and falls into the coffee table. Maybe this is a stage he'll outgrow? We're going to have to up size our house to have room to walk!