Loki did NOT make me do it!
This is something that I've realized. As a decent person, not to mention Heathen, I am responsible for my actions and thoughts and the consequences thereof. There's no "the Devil made me do it" as an escape clause. While the shirts saying "Loki made me do it" are funny at first glance, because of the Xian symmetry, they're false. Loki may have whispered the seed of an mischievous idea, but you or I are the ones responsible for anything that happens afterwards. Be proud of your actions, take responsibility, even if you did wrong to someone; you can make the effort to atone to them for that.