It takes a lot to get Fenrir mad, usually you'd have to threaten his friends and those he cares for. then you have to deal with a fierce, sacry individual with the abiltiy to summon 'darkness' to bolster his own physical power. needless to say, he doesn't get mad often.
though the maddest he ever got was ages before, when the Norse gods tricked him into being tied to a rock with Gleipnir, a deceptively frail looking magic ribbon made of things that did not exist, such as; The sound of a cat's footfall, The beard of a woman, The roots of a mountain, The sinews of a bear, The breath of a fish, and The spittle of a bird..a ribbon which was unbreakable.

---

this is a freebie done by  snapits for practice in drawing different kinds of characters. he really did a good job in capturing fenrir's look.