What's your addiction?

[louse]

Inspired by Canadian Bacon's thread.
Obviously we are all addicted to travel, so I didn't include that on the list, but what other vices do you have?
I have realised that I am totally addicted to food. I am always hungry, and often fantasive about what I am going to eat. I eat very slowly, savouring every taste. And I also eat a lot. I feel kind of self-concious about this. I always have seconds for dinner. The family I live with have gotten used to this but they are amazed at how much I can eat.
Especially because I don't put weight on from it. My absolutely non-scientifically based but impressive sounding explanation is that I have an extremely fast metabolism. Which is not as handy as it sounds! I never feel "full". And I think when I am no longer a teenager (only 2 more months!) I am just going to balloon up.