I know you Texas cowboys have trouble with the English Language.
Where most of us live, there is lots of water and lots of traffic. We need someone to collect tolls at toll booths to gain passage. In olden times, these gatekeepers were called "Trolls":
In Texas, you have sagebrush and travel by horseback. Instead of "Trolls", you have "Rustlers" stealing calves:
Hope this helps.