Eh. He who is without sin cast the first stone. There's not a single person out there who hasn't, accidentally or not, had drifting eyes to exposed cleavage at some point in time (if you're saying you haven't done this once you're lying). Especially at such a weird time and place.

For all we know his wife elbowed him and said, "get a load of the chick sitting next to you." This is an odd thing to focus energy on.