As I said in the chat thread, for me it's bourbon. The first time I ever got sick drinking it was from bourbon. And I think a lot of people have that same problem with whatever first made them ill. I barely remember the incident, as it was so long ago. But I think it may have been after a Van Halen concert. Heh. It was in the middle 80s, sometime. Of that I'm sure.
I can, for unknown reasons that defy any and all logic, drink Maker's Mark though.