Alf Christophersen writes:

On Sat, 13 Dec 2003 22:47:52 -0500, Bob Pastorio
wrote:

Actually, I suspect the rich have their choice. Sometimes top;
sometimes bottom.

No. The richer in fat, the lower density, and thus it floats to the
top.

In the context to which I believe Bob Pastorio was alluding, fats
are not the only--or even always the prefered--lubricants.

Lee Rudolph