Two college students, George and Sam, are riding on a New York City subway when a beggar approaches them asking for spare change. George adamantly rejects the man in disgust.
Sam, on the other hand, whips out his wallet, pulls out a couples of singles and gladly hands them over to the beggar with a smile.
The beggar thanks him kindly and then continues on to the other passengers. George is outraged by his friend's act of generosity.
"What on earth did you do that for?" shouts George . "You know he's only going to use it on drugs or booze."
Sam replies, "And we weren't?"