Weight Loss Plan

I remember one time when I was home visiting my folks.  My mom asked me to set the table for dinner.  I opened the
refrigerator and taped to the inside of the door was a risqué picture of a lovely, slender, perfectly built, but
scantily-clad young woman.

"Mom, what's this?" I asked.

"Oh, I put that up there to remind me not to overeat," she
answered.

"Is it working?" I asked.

"Yes and no," she explained.  "I've lost 15 pounds, but your dad has gained 20!"