Certain emotes and executions are narrated by a laugh or snicker from the performer. Can't say I'm a fan of it. It's super weird to politely salute, but hear my Warden cackling like a madwoman (exaggeration). God forbid she actually said something respectful. Lawbringer doing it when he's choking people I suppose I get. (He does stab people in the arse...just sayin') Nobushi is another odd one though; when she does the throat slash execute...feels a bit out of place. Would be more menacing if she respired with a subtle hiss or something. That'd be badass.
I'm probably alone on this, but it feels weird for me. Let Cent be the only hero with NPD.