"I go potty?"

For about a month now Zane has been asking to sit on the potty. He usually follows Morgan into the bathroom and wants a turn too. Occasionally I sit him on there but nothing has happened. Then this morning it happened – he peed! We were both so excited he immediately wanted to try it again. My friend told me to go with it and start potty training him. He’s not even 2 yet and it seems too early. But it would be nice to be done with diapers! (Dad will have to teach him how to stand.)