So my cousin is coming to visit for a couple weeks, and when I mentioned this when in conversation with our landlord, he both

1. MADE AN INCEST JOKE. I am so angry about this. It's so inappropriate. On ALL LEVELS.

2. Said that if we're having another person move in, he'd charge another 100$ — SHE'S JUST COMING TO VISIT.

WHAT DO I DO?

That being said, he didn't charge us a damage or move in deposit, so can I just get a kitten and call it even?!