I have said this about you tube videos that practice this and gloat. Without permission it's stealing. The town city district or other scraps also . It's like taking from the dump. lol free pickings .Now those that lurk near the dump and take or buy the metal/ electronic scrap before it enters the property from the resident or haulers well that's just hungry but legal. A sweet deal if you do it. Though it may be borderline activity. Imho . Curb shoppers need prior permission. Maybe agreement. Ijs