I think we can. I've seen it happen in various contexts. Though they were extraordinary circumstances, separated from typical experience. Money is really a very new thing to humans. We certainly didn't evolve using money or anything like it. And it is imaginary, anyhow... We have items that fill in symbolically, as representatives of whatever it is we call money. But the substance of money is an abstraction. It's a peculiar way of framing our social relations.