Taking care of daddy

The boys were in the tub and I was talking to them about what we were going to be doing tomorrow. I was talking to them about going to play at grandma's house and Lucas said that he wanted me to come and play too. Andrew followed by saying that I couldn't because I had to come home and take care of daddy. Lucas gave the same reply he gives to almost everything anyone says these days "why?". Andrew replied, "because someone has to take care of daddy"!