For, LOL! We should complain? To who exactly? When you are already looking at being stuck in a 30 minute wait to see a cashier, do you think anyone could be bothered to try and hunt down anyone in Carrefour with either the brains or responsibility to do anything about their produce?

Next time I see:
rotting onions
limp, half dead herbs
tomatoes and other soft fruit with patches of mould
milk and dairy on the front of the refrigerated shelf that has warmed to almost room temperature
eggs that are old

I can either look for fresher stuff hidden deeper in the display, or
complain.

Personally I have better things to do with my time than fight the Doha mentality of shop management and attempt to lodge a (pointless) complaint. Carrefour has been selling bits of crap for years. Why will they change now?