I tend to say something along the lines of “what’s your problem?”

Gives an opening to hear more without committing, and makes it clear it’s still THEIR problem.

I take it they are handing the camping equipment. Take enough warm things, you are in the elements all night. You will spend a fair bit of time sitting around in nature talking shit. Take some booze / weed to help conversation flow into weird places. Snacks as per above.

My wife and I shower together, someone is getting out sopping wet because either the other one is still going or there’s just not enough room to both dry in the shower. Heated floor dries the bath mat just as well as the towel rail anyway