[Okay, Don's hurt now and he's not even paying attention. Raph stops himself and mentally claims his victory, shaking out his fist. He stands there, panting hard until something catches in his throat, making him cough dryly a couple times. But he's fine after a second, clearing his throat.]

Just...havin' an off day, all right? And my throat still hurts from that cold I got durin' the experiment.

[Which was weeks ago, so it obviously can't be the same bug. But Raph doesn't know that.

He frowns at his brother's pained expression.]

You all right? Gotta pay more attention.