There's something disconcerting about that smile, even for someone like Lambert. Disdain, anger, disgust -- it's familiar to be on the receiving end of that, and it's too common as a witcher to receive it along side the coin for services rendered. The same way one might regard a rat catcher with both relief and revulsion: grateful to be rid of a problem, but equally looking forward to seeing the back of them as they go. Nobody really wants to be around something that kills things for a living. But that smile ... well, he wonders if he might have just made a mistake he'll regret indulging in that brief moment of stress relief.

Regardless, he files the whole incident under 'weird, don't want details, but could be useful to know' in his head -- maybe he'll get bored enough and need target practice one day? He can't think of many other reasons to summon a vampire just to kick him around. Out loud, all he says is--

"Might be easier if I had a name to call." He raises a brow. It's a practical enough consideration. One of the useful features of the voice-box things is the facilitation of communication, and it would be a lot faster to summon someone with one of those than try to sniff around all the expanse of the carnival, with its endless boltholes and places an enterprising individual might hide.