"Hey! Robot! Stop fucking panicking!" that's his solution to the fire, which probably won't do anything.

The roaches aren't a real problem for Jiro. He doesn't find them gross or frightening. He's seen creepier giant bug-like things, really. He doesn't punch them, though, instead going for the apples. He figures it's what they came in here for, and what they'll leave for if he takes the food away.