Humphrey's Counter owner James Meek speaks with The Post about his foray into the world of sandwiches.DAVID UNWIN / The Post Last week, I watched a car pull up outside newly minted sandwich shop Humphrey’s Counter. Two boys hopped out and promptly collapsed in despair when they realised the shop had sold out. “You’re joking!” One wailed. I - helpfully - told them they’d need to come back tomorrow, and suggested arriving early to beat the queues.