It's true to say, on the stroke of 4 pm Sunday, all the beer and food outlets shut.
But, as long as you have your evening chow / beer already, Sunday night is generally pretty amusing.
I must admit, I have no experience of Camping Merde (BSJ), but certainly on Houx Annexe we (16 of us last year) and plenty of others have a ball.
Fireworks, bonfires, hose pipes and super soakers, bbqs, oh, and BEER.
The campsite gate gestapo generally desert their posts at 4 pm, so it wouldn't harm to upsticks and move campsite.
The tea leaves / pikies can be a nuisance, but a bit of dilligence and observation on your part will save an upset.
Get to know your campsite neighbours, they'll look out for your stuff the same as you would theirs.
Better still, meet up with fellow CA people that will be on BSJ.
Gibberish will be there and should be along here soon..........