TIFU by joking about pets having human rights

My boyfriend is very sweet, but he's not the sharpest tool in the shed. Best word I can use to describe him is "quixotic".

Anyways, when talking about his dog, he said "pets are people, too". I'm pretty sure he was just parroting back some phrase from a dog food commercial.

Jokingly I said "Hmm... if they are people, they better have human rights! We better provide Chowder (his dog) with a free education until age 18!"

It was a stupid joke. He didn't laugh, but just said "You know... you're right!"

After spending hours on the phone with several doggy daycare and dog training companies, he decided none of it was up to par with the public education system that humans have. (To be fair, my boyfriend went to a woefully bad school, which is probably on par with doggy daycare).

I thought he would drop it, but just 45 minutes ago he told me that he's quit his job to be a full time home school teacher for Chowder. His intent is to teach him basic dog math, reading, and science. (What this tangibly means, I don't know).

I ultimately dropped the conversation after realizing he wasn't thinking rationally right now. I make more than enough income for both of us, so money isn't the problem. But this is certainly going to lead to some awkward conversations in the future...

TLDR - told a stupid joke, and now my not-so-bright bf is quitting his job to home school his dog.