While fishing, are you sick of all the fish being scattered? If you bring this dino near the shore or on a boat where fish are near by and use the aggro mist, it will aggro the fish to come right to you in a big crowd!
I used a lvl 100 tame pachyrhino to tame my 140 megalosaurus :) the first tranq ride the rhyno (the farts keep everything else off you) after that surround with pillars and fart away til it wakes up and repeat!
These takes make an excellent starting mount, while being weaker than a trike it can pacify most animals smaller than a Rex, giving you a good escape from and hungry pack of raptors and can Agro animals using its other scent thing, which comes in handy in leading creatures into a trap. It is also a two seater and is faster than the trike.
It is very annoying to fight, as when it sustains enough damage it will spray a cloud of pink mist which will drain all stamina on you and your mount (if riding). It is relatively faster than a trike, so it can get away fast