Wow, he hadn't expected to get much of a reaction at all, so he's a little startled to see what a sucker-punch his stupid joke ends up being.

Vincent's reaction is just as stupid as the joke had been, to the point that it can't help but become contagious. Irahl's surprised and almost-disappointed scoff quickly cracks into lazy and definitely-disappointed chuckling.

Ambling up behind Vincent on the stairs, he only half-jokingly puts a hand on his back and sort of braces his elbow, both encouraging him to continue up the stairs and making sure he doesn't stumble and fall back down them.

"Don't fall. Stupid way to die."