For a moment - for just a fraction of a second - Wash slows, world starting to tilt sideways as the Joker's words sink in. He knows a lot - he knows way too much, information he'd never get without a very deeply embedded source. Ice starts to form at the back of Wash's mind, the cold, ugly realization that he's been betrayed again-

That moment is long enough for him to miss Joker reaching for his flower - one of his signature weapons, one that Wash knows about - and in the next moment, there's acid in his face, hissing and bubbling as it eats through his visor.

He jerks back and yells, thumbing the seals on his helmet and tearing it off his head. For the next few seconds, he's got nothing - he's just trying to get the fuck out of the way enough to recover and recalibrate.