> Clever (and questionably valid) uses of checks can produce a surprising number of financial instruments.… a blank check is a bankruptcy declaration.
I'd say a blank check is more like a Durable Power of Attorney—it gives someone near-total ability to act on your behalf, including causing great harm of they abuse it. But neither *necessarily* trigger bankruptcy
> Bearer checks are checks made out to "bearer" and can be cashed by whoever has them. They might be treated with suspicion by the bank though.
Indeed they might. In fact, bearer bonds have such a long association with criminally and theft that they were essentially taxed out of existence (in the US at least) back in the 80s https://en.m.wikipedia.org/wiki/Bearer_bond
(Which is a cautionary tale for cryptography, but that's a different subject)
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