There was a crooked man

There were two of them. Two brothers. One of them was crooked, through and through. The other wasn’t perfect. He was mostly OK, but, sometimes, he was as bad as his brother.

You’d think that people would’ve preferred the mostly-OK brother. But it turns out that they were happier with the known quality. The crooked brother was an arsehole but he never pretended to be anything other than an arsehole.