I wouldn't say drinking's a vice on my behalf - i think it's a positive thing ;) brings people together and it's a relaxant

.
My vice - when i'm talking on a subject.. if you stop listening or change the subject - i'll just go straight back to where I was when you interrupted.. and i'll make sure I got my point across!!

....... but only on things that are important to me.. at the time
And.. I talk a lot

(i've been told i'm good background noise) haha.