Needs her privacy

I find this really odd. The first time it was weird, the second time it's odd. A few weeks ago we were at Grandma's house and it was morning and her diaper was dry. So I put her on the baby potty that Grandma has and she asked me to wait outside. So I did and sure enough she peed. It had been a long time since she had peed before this time. Well, that was a few weeks ago. This morning, her diaper was dry again and so I had her sit on the potty. Justin and I were both in the bathroom. I was ironing and Justin was shaving while she just sat there. I was surprised she was even able to hold it that long. Just before I was about to give up and put her diaper back on, I asked if she wanted me to wait outside. She said yes, so we left her alone and closed the door most of the way. Sure enough, less than a minute later I heard her peeing! I don't know why I find this so odd. After all, she's the same way when washing her hands. She wants us to turn the light on, but after that she goes in, closes the door, climbs up on her stool and washes her hands by herself in privacy. If only she gave us some privacy when we go to the bathroom, now that would be nice!