He's not used to someone arguing with him. There are more than enough occasions where Roadhog has told him no, to stop that, but it was in the interest of keeping him alive and safe, not because he disagreed with the plan or had wanted to pitch another idea.

Junkrat is trying to keep a lid on his frustration, choosing instead to grit his teeth and curl his fingers and try really, really hard to not think about blowing something up.

Rain.

It had to be rain.

He didn't plan for this, on account of never really having to worry about rain - more of the complete lack of it. Even as they get to the little space of dry safety, he chooses to stay in the rain and hold his face up into the biting rain, finding some kind of catharsis in letting it soak him to the bone, surrendering his aggravation into the water as it rolls down his body.

"Take care of the shelter." He hopes she doesn't argue with him on this too. "I'll deal with the fire."