As each ingredient was mixed in, the same thought popped into my head: I'm ruining Lime Jell-O, I'm ruining this lovely grapefruit, I'm ruining this avocado.   To back up, this has been one of the dreaded recipes from the collection.  I put it into the salad category based on recipe title alone.  Growing up, Jell-O was always a sweet dessert.  It wasn't until adulthood that I experienced Jell-O as a side dish.  My husband's Paternal Grandma would always serve gelatin (plain) with shredded carrots and shredded pineapple suspended.  His Maternal Grandma was also a whiz with Jell-O, using a metal mold that somehow she was able to get the gelatinous creation out of unharmed.  Hers were sweet much like my Mom's.  My Mom had a variety of Tupperware Jell-O molds.  She'll make you any flavor, with any canned fruit, and even add in Cool Whip to give it a mousse effect.   Alas, this is not my Mother's Jell-O.  This is something altogether much differe