Camping alongside challenging behaviour - wwyd?

[hummingbirdhostage]

We are going on a 2 week camping holiday with our best mates. We each have two kids and the kids seem to get on with each other quite well. Handy! Except their eldest poses constant challenging behaviour which they sometimes respond to and sometimes ignore. This drives me crackers. To be honest, their parenting approach has always been indulgent and non challenging which really contrasts with mine. Not a problem really until my kids start copying theirs and then they all look at me wild eyed to see why I am rebuking my kids. My kids feel I am being unfair too. I'm now really not looking forward to being with them and can't believe I'm feeling this way. It would be selfish and unreasonable to cancel it but I'm not sure how to handle the frustration. Please, tips anyone??!

What does he do that's the most troublesome, do you think? (Mine is a bolter - extraordinaire!)

Also perhaps relax on your kids for the fortnight. You don't see them often so any bad habits picked will soon be forgotten when you're back at home with them and with your usual expectations. They can unlearn habits. It won't be nice to be on edge for you all the time, let some of the smaller stuff slide am or just give a stern look but nothing more.
Just an idea. Perhaps not a good one, but mainly just saying your kids won't become demons in a fortnight :)