Most likely the first thing that would come to mind about llamas, and one of the most widely circulated facts, is their spitting ability. But llamas can be some of the most loyal, affectionate and in-tune pets as this true story reveals: When Pamela received the news that cancer had returned to her beloved uncle with no options available for beating it and only months to live, she was devastated. She went out into the middle of the property where her 4 llamas had free roam, and just sat down and cried. After about 15 minutes of grieving she heard a humming sound, and looked up to see that her pet llamas had sat down around her in a circle and began humming over her. She was touched and comforted as they gave sympathy and care in the way the knew how. You see, llamas communicate by humming, be it sympathy, contentment, or disapproval. It is a beautiful melodic sound.