I thought it was 'sometimes' but it seems to be always. I had wondered why my Karma seemed to increase slowly. Auto Hire Cats seems to also buy cat levels.
Any hints for the Curiosity killed the cat achievement? I have looked everywhere, but I can't find it. I thought it was from reading the book on the main page, but I guess not.
Another thing that I have either forgotten or never knew is what Blessings do passively, if anything. Karma increase Favor increase Gifts increase Blessings, and Gifts raise room levels, a percentage of Favor increases Karma (?), but what do Blessing do? I periodically do a blessings reset just because of the vast difference between stored Blessings and potential Blessings, but there are too many numbers flickering away for me to be sure that there is any point to Blessing other than the few needed for the upgrades.