I leaned on my birthday a few years ago. Someone gave me a book of dog sweater patterns as a joke. I looked up after I unwrapped it and said "But, I don't know how to knit!" My friend laughed and said, in her best 'I dare you!' voice, "I bet you can learn." I looked at the book again, got a bit of a stubborn expression on my face and said "I bet I can!" So I did. Haven't stopped yet!