His whole body twitches, and not because it's cold.

"Heheh..."

It starts as a sardonic little chuckle as a smile cracks across his face. The chuckle stops, and then kicks back into a chortle.

"Hahahaha--!!"

It gains more and more momentum until he's clutching at his stomach in stitch-busting laughter that could probably be heard for miles. It takes him a long moment to get over whatever nonexistant joke is hanging in the air before, calming down to a breathy little giggle as he reaches into his satchel and pulls out his utility knife. It snaps open with a fierceness that rivals the lightning.

"I..."

He turns to Fareeha, and even though his disguise is still in place, the unhinged smile is cracking through the seams like they were a cheap plastic mask struggling to stay in place. It's a mild threat for Junkrat, because he doesn't really want to hurt her, but apparently he can't get the message across any other way.

"...Insist."