In 2003, he wrote an article titled, quote, A Liberal Argument for Slavery, the abstract of which starts like this, quote, The slavery contract is not a rights violation since the right not to be enslaved and the right not to give out a benefit are waivable and the conjunction of their voluntary waiver is not itself a rights violation. The case for the contract being pejoratively exploitative is not clear.

This guy's a super annoying libertarian philosophy professor, and if you check his publishing history closely, you'll even find that in 2001, he wrote a paper titled, quote, The Moral Status of Harmless Adult Child Sex, wherein he argues about what you might guess from the title. This is a position he's posited for a while.