Alien child?

I just wanted to post a little funny story about Kayla. She has started this thing where she calls everyone humans instead of saying person. The other day we were walking and she saw a lady talking on her cell phone and said, "Mommy, is that human talking on the phone?" Then we were in the bathroom at church and someone came it to use it. The woman went into the stall and Kayla says, "Is that human going potty?" The woman in the bathroom started laughing. It makes me feel like Kayla is some sort of alien child because she calls everyone HUMANS!