Jeff and I caught Sean talking to no one in particular. Must be his imaginary friend. He was saying a lot of things and using lots of hand gestures. The words that we caught were vacation, socks & shoes, and bye bye.
So we asked Sean, "Are you going on vacation?"
"Da" he answered with a big grin.
The next thing we know Sean had grabbed his suitcase and whizzed by us saying, "bye bye, I going on vacation". He then promptly grabbed his hat, glasses, and stepped into daddy's shoes.