>In the same genre --- guy is in a terrible accident, his legs mangled.
>
>He comes to in the hospital. The doctor says I have good news and bad news, which do you want first?
>
>Give me the bad news first, he says. That way I'll have the good news to look forward to.
>
>OK, the doc says. The bad news is we can't save your legs. We need to amputate.
>
>OMG, the guy says. What could the good news possibly be?
>
>The guy across the hall wants to buy your boots.

Another one--

A guy comes to the hospital to have his left leg amputated. When he wakes up after the operation, the doctor tells him that he has good news and bad news for him. The bad news is that they amputated the wrong leg. The good news is that they had discovered that the amputation wasn't really necessary after all.