Cheeky thief sends explanation note to man after keeping his wallet, cash and metrocard

So often the internet gives us feel good stories about good Samaritans helping out others in need, well we must be scraping the bottom of the barrel because this story has only a morsel of good will in it.
A man called Reilly Flaherty lost his wallet in New York City. He had all his credit cards, his driving licence, cash and his metro card in the wallet and aside from the cash we all know how annoying it is to have to replace all your cards when they get lost.