I found a few websites today that tell you how to train and handle llamas. I learnt this fascinating fact! When training llamas you must make sure that there is
NO FIDDLING WITH HUMANS' BODIES. That definitely includes playing with shoes and boots -- an action that is a prelude to fighting behavior.
Apparently this is common behaviour in bored young llamas who pass time fiddling with another animate being. This includes ear or neck mouthing, head-ducking, neck-pushing, and usually leads to some sort of wresting match. However, a bored llama may make the human the focus of his fiddling and then you have a problem!
for more details!
For an excellent video as to what you can get llamas to do with patience look at