when our dog was a pup my wife showed her how to open the front door by pushing down on the handle. luckily she's forgotten how that works but now when she wants in she jumps up, all four legs, to about the height of the handle and scratches the door above the handle. it's amusing but our really nice door is taking a beating.
@keithpjolley One time the cat managed to pull open the closet's bifold door. He has never stopped trying to do it again, but unfortunately for him he now always tries to pull on the ends of the door, not the middle.