My Catholic grandparents had 6 kids, and there wasn't a ton of spare money for candy or sodapop. However, the economy was such that the refund on a single bottle would pay for lots of candy and sodapop. My dad and his older brother were resourceful teenagers. Who happened to have a "surprise" brother many years younger. So they'd take their youngest brother to a likely looking dumpster and lower him upside-down into the dumpster (each older brother took a leg) to dig out any bottles. I've never thought to ask if he got any candy for his trouble--I'll have to next time I see him.
If the kids were playing on the second floor and needed something from downstairs, they'd put youngest brother in a laundry basket and lower him down out the window to go get it. They also forced him to sit in a basket and Jesus when they played "communion" with the Necco wafers paid for with those dumpster bottles. And of course why would you give Jesus "communion wafers"? (Would that be cannibalism?)
Many, many years later my dad was building a house and needed some cheap labor. Conveniently, his youngest brother needed a job. I don't think he was paid a fair wage.
They all laugh about it now, so there's no hard feelings. And youngest brother seems fairly well adjusted and not at all traumatized.