The air hostess on a flight from New York to Chicago notices a man is sitting biting his finger nails and sweating profusely.

Concerned for him she stops by his seat and says, "Sir, can I get you something from the bar to calm you down?"

The man gives a nod of approval while shaking terribly.

She comes back with a drink and he downs it quickly.

Ten minutes later, the flight attendant sees the same man, ashen, shaking and biting his nails. She brings him another drink which he swallows immediately.

A half hour later she returns to see that the man is shaking uncontrollably, and apparently crying.

"My goodness," the flight attendant says, "I've never seen someone so afraid to fly".

"I'm not afraid of flying," says the man sobbing loudly, "I'm trying to give up drinking!"