When Ben's managed to diffuse the situation, he goes back down the alleyway only to find his partner had vanished.

"Hey! Jackass! Part of that's mine!" he calls out and starts to look for any signs of which way Benedict might have gone. Of course, he will never let his siblings learn of this. Ben can manage on his own, and who knows what they would do to someone that just ditched him in the middle of a mission.

He can't find any sign of the other, so he takes the most likely route and starts to rushing around the streets to see if he can find a flash of his momentary companion.