Here in my region of france, the skip place itself used to be ok to take stuff out of, and the workers there used to do it too as they owned a secondhand shop, but kept the place clean, locked up at night etc. Then the council sacked them for it, and replaced them with some very spanish gypsy looking types who zealously guard every piece and item, but leave the gates wide open at night to save the rest of the theiving scum parasite gypsy population having to climb the fence (or rather to lower their kids the other side of the fence and get them to pass eveyrthing over). I only take my really horrid rubbish there now, especially plastic cling film coated with oil, or my favourite, the crust off my septic tank

Next dept over has a much more enlightened dechetterie, they have a actual business attached to the tip called "Maximum" with signs made out of junk etc best scrapheap challenge style, and they recycle everything they possibly can. They stash all the stuff in a yard area, and you can wander round and pick up what you want. I paid 40e for two mobylette mopeds the last time I was there for one of mate's kids to practice in his field with, and the time before I scored a 3 phase cinncinati sensitive drill with rise and fall head and taper shank quill. Once I seen a whole renault master that someone had drove up and left, and I was converting mine from uk to french spec, so I had the headlights, the column the lot out of it, in fact they stripped out the bits I asked for and I collected them a week later! You can also commision them to make stuff, they were making steel roof trusses out of some tube for someone one occasion I was there.
Its also common for people to arrive with complete cars, and theyll cut them up with a oxy torch and split out the steel/plastics etc into various recycling bins.
My mrs says if I go to maximum, Im bound to return with more stuff than I went to dispose of. Its true, I love taking the rubish there, and the blokes there love me bringing a van full of odds and ends for them to sift through. I think its a win win situation, the amount of crap buried in a big hole is reduced, they get some money back, and I dont begrudge paying them for the pick of the yard...