Just remembered - you're vegan, right? Well, as a vegetarian (over 15 years now) I can say that giving up meat was a doddle compared with even the idea of never tasting chocolate again... I'm impressed. Was it health/diet reasons or principle?
By the way, I heard a summary of some research on the radio last week that found that intelligence in childhood could predict vegetarianism in adult life - most were above average, converted before their thirties and women