Kacee doesn't do that, but little Muffin used to and she scared me to death. She could jump so high and I never could figure out how she could do it! I walked in our family room years and years ago and there was Muffin sitting on the back of the recliner! I almost had a heart attack and I just couldn't imagine how she jumped so high.
Also, when she was really excited, she would jump off the back of the couch and land halfway across the room. She never did hurt herself, but I was like you are now - scared to death she would break every bone in her body. She was my little wild woman.
She had lots of fun in her life. Kacee is calmer and not nearly as wild.