For a year or two afterwards I couldn't help worrying whether, from up in heaven, he could see me take a bath or use the toilet.
Not the kind of hang-up that a growing kid needs. Adults can do without it, too.
I knew a woman years ago that was too afraid to have sex, because she worried that her dead grandmother was up in heaven and could see her in the bedroom. She came from a very religious family where sex was for having babies and not something for women to enjoy, and her biggest worry was actually that she'd make her dead grandmother very angry.
No, I didn't find out by trying to have sex with her. The subject came up one day, after she had gotten married to a guy she didn't seem to care about at all, and she admitted her biggest incentive for getting married was that her family was pissed at her for being the oldest but having her two younger siblings get married before her. I cracked a joke that she at least had a live-in sex toy now, and she became extremely anxious and then made that confession.
For what it's worth, her guy also didn't seem very interested in her either. There were some strong signs that he actually wasn't very interested in women in general, and this might have just been a marriage of convenience, because he also come from a very religious family.