I cannot believe I forgot to mention my most-favorite story from Halloween night!
Will was walking around with his mask pushed up on his head. Some older kids were walking towards us, all dressed as the Avengers. Will slowly slid his mask in place, like he was trying to not draw attention, and puffed out his fake muscle chest and froze in place. He's convinced he's really Batman when suited up so I'm pretty sure he thought those boys were the real deal too. The boys crossed the street and Will resumed being Will.
It was the funniest thing to watch.