The way in which Hans agrees with him only further solidifies his decision not to kill him. They're both victims here and while the man's fear and kindness may be a weakness, it's not one he's particularly keen on exploiting right now. Perhaps if he had more to gain, yes, but at the moment he sees nothing to gain but a small pile of sweets that he doesn't need.

At the response to his question, Starkiller takes a long look at the danish in his hand, noting how excited Hans is to see the thing. It must be good if he could perk up so easily after such a morose conversation. But...

He brings back his hand and flicks it forward, hurling the danish towards Hans' face.

"That tells me nothing."

And because even small acts of revenge can be rewarding sometimes.