If the Mongolian Death Worm exists,imagine that you are a scientist and you've just discovered that you can control them.What would you do?Would you raise them as your own child;use them for evil,for good;destroy a country;or simply scare your litller sister?
I would conquer the world and then raise a army of super-pigs to entretain me and feed my worms.
If you dont know what is a Mongolian Death Worm,there is a topic somewere is the tavern(not very old, less than 2 days) that tells something about the Mongolian Death Worm and also has a link to the Wikipedia,please check it.
Personally, if the mongolian death worm exists I'd try to find other liable cryptids. Ninki Ninka, Mudpuppies (try to get a good sample of them for science), or even some elves.