Here's a guide on how to mod and have a clear conscience.
1 Worship jesus - confess, repent and beg for forgiveness ASAP or,
2 Worship satan - never admit it, stick with your version till the end and believe your own lies untill they become truth or,
3 Worship george clooney - mod something hard, come clean about it later even if not accused, then start modding in a less obvious manner. The more technical the stunt, the less suspicion...
first 2 methods don't stack unless you're actually the real George Clooney