visators not scared

hi is there some thing i can change so that vistors are not scared of herbs i want to make a park where herbs run free around the park and carns are in cages

First of all,I think this should be in Site Help,and second,you just make tons of security cameras and turn on enraged dino and breakout detection,make many sentry turrets and do the same with the camera,and make at least 3 visitor shelters,thats what I did,and my visitors just watch herbs in awe.(But this doesn't work with triceratops or brachs,unless you make more of the 3.)