How do you become a werewolf without being bitten?

According to Sabine Baring-Gould's seminal work "The Book of Were-wovles," the transformation into a werewolf varies depending upon culture. Throughout history & culture & folklore the cause could be due to any of the following: 1. A curse from the gods, as in the case of legendary Arcadian King Lycaon who offended Zeus with his cruelty and was subsequently transformed into a werewolf. He is considered the first werewolf in history as the term "Lycan" is a derivative of his name. 2. A deliberate "beserker" rage or psychosis brought on by the donning of a wolf's skin. This was common among Northern cultures that used the psychological forboding of the wolf to intimidate their enemies. In clinical psychology this is referred to as lycanothropy, a medical state that apparently was not too uncommon in early European history. 3. Magical shapeshifting ability learned from a spell or an inherent/genetic ability. Related to this is the ability to make others believe you have transformed into a werewolf while actually maintaining one's original human form. 4. In certain South American cultures (Brazil, Argentina) they believed that the 7th son would become a lobizon (Latin werewolf). The superstition varies between the 7th son after 6 straight sons (no daughters) or the 7 son after 6 daughters, but the fear was real and during the 1900s many 7th sons were abandoned or murdered. To stop this practice, in Argentina the 7th son is officially the Godchild of the President, receives a gold medal at their baptism and free education until the age of 21. 5. Accidental or deliberate consumption of human flesh resulting in lycanothropy. So, it's very possible to become a werewolf without being bitten depending upon which mythological tradition you choose to draw from. Hollywood has also shown us many inventive origins of the werewolf from the attack of the young man in "American Werewolf in London," the genetic inheritance featured in "Skinwalkers" and "Blood and Chocolate" to the shapeshfiting abilities of the indigenous people in the sequel to Twlight ("New Moon"). One might even argue that Wolverine from the X-men is suffering from psychological lycanthropy. What's wonderful about the werewolf mythos is that it's so less romanticized and formulaic than that of the vampire that you can really make it your own.