[Right Wing Assault]

I have not understood why people seem to like grapefruits amd grapefruit juice.

Different people taste things differently. There are several taste tests used in biology classes to show this to students. Here's one of many references: http://www.ns.purchase.edu/biology/bio1550lab/ptc_tasting.htm

[HiTech RedNeck]

Odor is a large part of a flavor. Graprefruit smells good.