Llamas and Robin

We have to get our Lamas sheared soon I am worried how they are going to do it. Meeko the male is very protective of Matilda the female. Robin seems to have a bond with Meeko so I am hoping they can do it when I am at work and Robin won't get hurt. He sometimes does more than he should not knowing his limits (Robin that is). Meeko does seem to have some respect for Robin. More than he does for me anyway, he just tries to push me down and show me who is boss. They both are beautiful animals but sometimes I worry they are to much for us to handle.