I think I am having a similar problem with negative stats. It occurred between the clown in the fair and just after it... I bopped the clown with the rubber hammer and everyone laughed and had a good time, then I left and am currently resting under a tree.
I don't know when, but I noticed sometime after that, that my initiative and power went down approx. -3.6 each. I am pretty sure I didn't make any choices that would seem evil in any but the most abstract and obscure ways...
I mentioned this to Wodin in game and he seemed puzzled as well... I am not sure how to verify any choices I made but maybe there is a record of them? I'm very curious how this could have happened and at the very least would like to not do it again If it's a bug, I just hope this can help fix it.
Cheers.