I think you're mixed up. Wil Wheaton doesn't have anything to do with the Avengers movie. It's Joss Whedon.Directing, if you didnt already know.
Not sure if your trollin in that last post or not....
In that case, we're going back to NEVER!!!
That joke's older than dirt, too. In History of Rome, we learned of the Legion motto 'come back with your shield, or on it,' meant to discourage dropping your heavy shield so that you could run away faster. There was a popular (if subversive) Roman poet who had some verse about 'I can always buy another shield when I get home...'
Archilochus. He was a Greek Soldier/Poet. Supposedly, he was such a good satirist that he caused an entire family to commit suicide rather than endure his taunts.
The Poem (one translation)
Some Saian mountaineer
Struts today with my shield.
I threw it down by a bush and ran
When the fighting got hot.
Life seemed somehow more precious.
It was a beautiful shield.
I know where I can buy another
Exactly like it, just as round.
In another he describes what makes a good commander,
"not preening with golden locks,
but bandy legged and round."