How potentially useful to know. His mind silently mulls over the possibilities such an ability could be used for.

Though externally, Emet-Selch sighs as if to quietly lament the hassle that has presented itself to him. "Then perhaps it is not in our best interest if you bleed to death here, as wholly inconsiderate as that would be." He reaches for a nearby blanket and bottle of water that the guards have deigned to leave for their captives, then moves nearer to the stranger.

There's a ripping sound as he tears the flimsy blanket into pieces. Oh, this would be so much easier could he use magic, but for now, he would have to settle for more archaic means. "Be still while I tend to these abrasions." It definitely comes across as an order rather than a suggestion.