My daughter uses a potty bowl for our granddaughter. In the car, on the go, anywhere where a restroom isn't available. Simple to provide some privacy with a small blanket or jacket, then you take the potty bowl elsewhere to dump it. Reminds me of the time before she carried a potty bowl, we were on a trail and she took our granddaughter behind some trees for privacy. We walked up the trail a little bit to wait for them, and laughed because we easily saw them doing the bathroom bit behind trees from the new location.
Needless to say, that six-year-old is lucky the cat didn't grab her by the neck, which could have been fatal.
It was the four year old that was attacked.