You know you're really a parent when you're giving a child a bath and you have to say:
"Um... buddy? It's okay to touch your pee-pee*, and I'm sure it feels very good, but that's something you need to do in private, not in front of your foster mom while she's giving you a bath. We only do that when we're alone, so I'm going out of the bathroom and closing the door now. Let me know when you're ready for me to come wash your hair."
*To clarify, I used the accurate anatomical term, but he insists on calling it a pee-pee anyway, and I don't want people to find my blog by searching for the real word!