one day a class of college students were talking about the peanut vendor in their university library
student1: i pity that old man. he is half blind. what if students cheat
on him
student2: yeah, and he's old. how can he do all the math?
professor: oh yes that's all true. but didn't you know that he has
son's and daughters in Harvard, MIT, and Stanford?
students: what? how can he afford the tuition?
professor: oh no you got me wrong. they also sell peanuts
student1: i pity that old man. he is half blind. what if students cheat
on him
student2: yeah, and he's old. how can he do all the math?
professor: oh yes that's all true. but didn't you know that he has
son's and daughters in Harvard, MIT, and Stanford?
students: what? how can he afford the tuition?
professor: oh no you got me wrong. they also sell peanuts