Erick has been wanting to let her do this for a while. They have a station at the mall, and Piper has asked a few times to go as well. Grandma was nervous about her jumping, and was afraid she would get hurt. However, you can hear her in the background laughing hysterically the whole time. Piper had a ball, and thought it was so much fun. I couldn't believe how high she was jumping at times.