Personally, I just try to ovoid anything that goes against my morals. I wouldn't do necromancy as I believe the dead deserve their peace, and I woldn't attempt to create anything with a conciousness, unless I was given an extrordinarily good reason to.
i hear ur pain brother. plaid is the worst evil man ever conceived.
but i digress the one thing i would not do again is my bacon spell. makes everything u eat taste like bacon and after a while it tastes like rotten bacon from macdonalds. great for dares horrible if you like cheesecake.XD
Secondly, and more relevant, really, if you are working with something that makes you uncomfortable or that just feels wrong, stop. You have to listen to your intuition. You know what's right for you. Trust your gut feelings.