I read about back country hunters using llamas as pack animals because they are low maintenance, nimble, cheap, and can pack 7
5lbs+. I tried to rent one a few years ago and the thing would not cooperate uphills. He only would walk on flat areas or declines. That experiment was a bust.
I decided to give it another try, but this time train my own llama. I picked up a nice young male from the auction and gelded him right away. He is doing great, but is a little shy and timid. I had to rope it like a cowboy the other day just to put his halter on. He did not want to move at all. I had to go behind him and prode him to walk. Emilio the llama is stubborn and timid right now but eventually he will get used to me and then I can start to train him but it is going to be a tough job!
I guess llamas can be aggressive check this out: http://www.cbc.ca/news/canada/british-columbia/story/2011/08/05/bc-llama-attack.html