Have a laugh

This noon, I went to buy cigarettes and bought a pack of 20. I gave the shop owner 50, and he gave me 40 in change. I put it in my pocket and walked away. I hadn't gone far when the owner shouted at me: 'You didn't take your cigarettes!' I shed tears of gratitude: 'You gave me 10 too much change.' The shop owner also shed tears of gratitude: 'Young man, take the cigarettes, I'll exchange them for a new pack for you.' Smoking the new pack the owner gave me, the pure flavor moved me again: 'Boss, give me back the 50 from earlier, I'll give you a new one.'