PLEASE LISTEN TO MANJOUME’S VOICE. And yes, he did cough after his cool, dorky laugh.</p And thanks to @neemons, apparently when Manjoume says “unforgivable” he makes a pun; the Japanese word is 許さない (yurusanai), but he says 許サンダ (yurusanda) as in THUNDER.

And this is why Chazz is my favorite character from Yu-Gi-oh GX.