An eye-doctor was having his 40-year birthday and had gathered lots of
friends and family in his house.  His wife had made him a surprise
cake and led her husband blindfolded to a table where the cake was placed.
 
Eagerly, the doctor removed the blindfold and looked down on the cake
and immediately  burst into a crazed laughter, for there in front of him
was a huge cake, decorated with 40 chocolate eyes.
 
The guest asked him why he laughed. After some minutes of laughing and
wiping his eyes, the doctor said, "I'm just thinking of my buddy who
will  be 50 next week.  He's  a gynecologist."