Jack ! You've really done it this time .   What ? What happened ?   I told you to get this consignment out last week.We can't very well run a light bulb conference without any light bulbs , can we ? What am I going to do with you ?   Please , give me one more chance . I'll never let it happen again . I'm very sorry .   Well , I guess I could give you one more chance , but this is the last time.In themeantime , I hear that Tom who normally does night shift is taking three weeks ' vacation , Can you think of anyone who would be willing to work nights while he is gone ?   Um , me ? 