I don't know. The last time I smelled the inside of one, it was pretty bad. My buddy got lost in a blizzard, so I rode my yak out to find him. When I finally got to him, he was so hypothermic that I had no other choice but to use his weird religious laser gadget to cut open the yak and stuff him inside. It was so nasty that I made the above remark.
A similar thing happened to me, but in my case I had to cut open a Yak in the dead of winter and hide inside it to avoid hypothermia and avoid the people chasing me so that I could hunt them down one by one and exact revenge. But you talk to kids nowadays, they don't realize how good they have it.