"The kind that tastes like dirt." Aka the kind he enjoyed overseas during the war. He will never forgive or forget!!! But, in all seriousness, Steve smiles boyishly when she bumps into him.

"Not so bad, huh? That's a nice way of saying pain in the ass, Nat." His eyes flash in gratitude. He knows he's a handful. It means a lot that she sticks by him all the same.