... and even if I did, I wouldn't dare to use the adverb "accidentally" to describe what happened.

The system is so poorly designed, who's to say his unusual behavior will be handled properly? That second 10K might just disappear. He let curiosity override the rational, cynical side of his brain. It happens.

If I were rich, sure. $10k for Me is like $0.10 for Bezos.

But with your last $10k? That's just stupid (or fiction)

Yeah, but then you lose a lot more than the $875 OP is trying to make from the bonds.

Source: I have both a child and an I bond