9. Captain America Screws Up His Quip - Tales Of Suspense #92 (1967)
Have you ever tried to say a clever comeback but you screwed it up? Although this can be embarrassing, you shouldn't worry about it. After all, this sort of thing can happen to the best of us. I mean, Captain America is the leader of the Avengers, and even he's been known to mess up a zinger every once in a while.
While on patrol, Cap discovered Nick Fury was being targeted by an android called the Mechno-Assassin (For the record, that's one of the worst supervillain names I ever heard.) Despite hitting the robotic hitman with everything he's got, the Mechno-Assassin batters the Super-Soldier senseless.
Just as Captain America looks like he's about to give up, he says the line, "Only one of us is gonna walk outta here... and it won't be me!" So, instead of sounding like a badass, Cap apparently confess to suffering from confidence issues in mid-fight.
Superheroes like Iron Man and Spider-Man may have a knack for doling out killer putdowns, but it's obvious Captain America needs to work on his material based on this embarrassing exchange.