I used to have 2 cats (rip), one of which became facinated by the snakes after a friend’s neonate boa escaped the enclosure I was provided to babysit him in. The cat and boa were nose to nose under the kitchen table and she was purring at it. Neither were freaked out and afterward she would sit next to the tank I put him in (with secure clasps) and watch him and purr. After that I would have to lock her in another room to keep her away from any snippier snakes. If I had one of the calm ones out, she’d come sit next to me and purr at whoever I was holding.