Your comment reminds me of the fact that, at least up until I was a teenager in the early noughts, the local priest used to come to each house to bless them inside with an aspergillum and a censer (but it might have been a censer looking thing full of holy water).

You had to give permission, but I remember insisting to my parents that I didn't want them to do so, because I was worried that in his zeal he'd get too carried away and hit my pc with holy water.

PCs, especially older ones that were already on their last legs, don't need to be satanic to not play well with holy water thrown at the case.