The Lion Pees Tonight

We just had an impromptu safari in our house. Relia let me know that there was a lion downstairs and the only safe place was in her castle (aka 'her bed'). We quickly went up the steps and into her room. She ventured back out into the hall so she could close all of the doors on our second floor. I told her not to mess with our bedroom door but said she could close the bathroom. She looked at me with that look of innocence that only children really get and asked, "But what if the lion needs to pee?".