A man goes to the doctor for his annual checkup

During the checkup, he learns he has some sort of rare disease, and has 12 hours to live. When he comes home to his wife, he tells her the news, and she starts sobbing. She then looks at him and says,"I'm going to give you a night you'll never forget." They go to their bedroom, and proceed to make passionate love. After they made love, the man says to his wife,"Let's do it again." The wife agrees only this time was even more passionate than before." After that the man says," It's getting late, but let's do it one more time." The wife says,"Easy for you to say. You don't have to work tomorrow."