There's chaos as the new, recipient of Jinx's would-be prank crashes into another unfortunate victim with a cry, causing everyone else in the immediate vicinity to break, trying to get away. It's a panic in the streets.

It's just it's occurring to Jinx to wonder where the old man got off too that there is the sound of clapping behind her. Shang Tsung appears winded by the speed with which he made it up to her roof as he approaches.

At least, that's how he appears.

"An excellent beginning, young lady." He commends, stopping a short distance away from Jinx, being careful to keep his distance. His eyes dip down to the beetle in her hands. "May I assume you're trying to correct your formula for a larger reaction, yes?"

Mechanical engineering and some chemical knowledge as well, and little to no inhibitions on how she might us them? This is a young woman Shang Tsung wants to keep an eye on.