Oy Am I Thirsty

An old Jewish man riding on a train begins to moan: “Oy, am I thirsty; oy, am I thirsty”, to the annoyance of the other passengers. Finally, another passenger gets a cup of water from the drinking fountain and gives it to the old man, who thanks him profusely and gulps it down. Feeling satisfied, the other passenger sits down again, only to hear “Oy, was I thirsty; oy, was I thirsty”.