Ice-cream seller: Great I'll tell her to do just that!
Children: But how do these notes get so dirty?

Money Kumar: Because they change hands frequently. And not all hands take good care of them.

Ice-cream seller: Yes, I know. The paan wala next to my shop has so many notes with paan stains on them.

Children: I agree. Even the fisher-woman who comes to sell us fish folds and tucks the notes in her sari!!!

Money Kumar: I know people who use them as writing pads and write telephone numbers on them. All such habits reduce the life of a note and reduce its value.