Why Single Golfers Are Thinner

I once attended a golf convention in Las Vegas during the winter and became quite interested in the results of one particular study performed on golfers; specifically I was interested in after-work league golfers.  This study indicated that the single men who play in these leagues are "thinner" than the married ones.

The reason for this phenomenon was quite simple when we the answer was finally discovered.

The single golfer goes out and plays his round of golf, has a "refreshment" at the 19th hole, goes home and goes to his refrigerator. He finds nothing decent there, so he goes to bed.

The married golfer goes out and plays his round of golf, has a "refreshment" at the 19th hole, goes home and goes to bed, finds nothing decent there, so he goes to his refrigerator.