It was 7am this morning and Jess and I were laying in bed and heard a single "vrooom" coming from Art's room (the chain saw sound). It was a wonderful thing to hear, knowing Arthur had woken up next to his dear toy and made it go. Jessica has noticed that Lewis seems to understand the toy is not his, and (after some parenting discussion) we've decided it's entirely up to Art whether or not he's up for sharing. And so far he's not. But Lewis has other stuff to play with and he's plenty happy.