Never have, but will try any critter once. Have done alpaca, cows, pigs and goats. Goats were interesting. Put one in and he managed to excape before we got #2 in, took 4 of us to keep 1 & 2 in while getting the 3rd in and then humans out without having to start over. Then we could not get the little buggers out again! Once they discovered the hay they laid down to eat.
Edit to add
A friend who has one tells me they can be temperamental. Fine and cooperative one minute then have what he calls a yak out. He says if he needs to move it he mildly sedated it.