Don't I Know You?

HAVE YOU EVER BEEN GUILTY OF LOOKING AT OTHERS YOUR OWN AGE AND THINKING, SURELY I CAN'T LOOK THAT OLD.
 
WELL . . . YOU'LL LOVE THIS STORY:
 
MY NAME IS MARY, AND I WAS SITTING IN THE WAITING ROOM FOR MY FIRST APPOINTMENT WITH A NEW DENTIST.
 
I NOTICED HIS DDS DIPLOMA ON THE WALL, WHICH BORE HIS FULL NAME. SUDDENLY, I REMEMBERED  THAT A TALL, HANDSOME, DARK-HAIRED BOY WITH THE SAME NAME HAD BEEN IN MY HIGH SCHOOL CLASS SOME 30-ODD YEARS AGO.
 
COULD HE BE THE SAME GUY THAT I HAD A SECRET CRUSH ON, WAY BACK THEN?
 
UPON SEEING HIM, HOWEVER, I QUICKLY DISCARDED ANY SUCH THOUGHT.
 
THIS BALDING, GRAY-HAIRED MAN WITH THE DEEPLY LINED
FACE WAS WAY TOO OLD TO HAVE BEEN MY CLASSMATE.
 
AFTER HE EXAMINED MY TEETH, I ASKED HIM IF HE HAD ATTENDED MORGAN PARK HIGH SCHOOL .
 
YES. YES, I DID. "I'M A MUSTANG," HE GLEAMED WITH PRIDE.
 
"WHEN DID YOU GRADUATE?" I ASKED.
 
HE ANSWERED, "IN 1975. WHY DO YOU ASK?"
 
"YOU WERE IN MY CLASS!", I EXCLAIMED.
 
HE LOOKED AT ME CLOSELY.
 
THEN, THAT UGLY,
OLD,
BALDING,
WRINKLED FACED,
FAT-ASSED,
GRAY-HAIRED,
DECREPIT
S-O-B
ASKED,
 
 
"WHAT DID YOU TEACH?"