Des drinks when he is in over his head, and lately he has been! Being responsible for people's fate is got to be wearing him down quite a bit, so I think drinking on a remote island is warrented. I don't really think he is a alcoholic. He was ready to turn down Charlie and Hurley, cause he knew he had spent a lot of time drunk lately. It was when he saw the name of the whiskey he changed his mind. It was a way of getting back and Penny's Father.

__________________
" I push this button every 108 minutes, I don't get out much."

"Theres a time for living low down, theres a time for getting high. A time for peace, a time for fire. A time to live, a time to die."

The real art of conversation is not only to say the right thing at the right time, but also to leave unsaid the wrong thing at the tempting moment.