I grew up in rural Arizona , ranchers all over the place , back in the day , they were very cool , they didnt mind you being on their land ( we were just kids anyway ) , and just told us what direction not to shoot , because of the cattle ………now because of all the wetbacks and drug runners , that has changed . But anyway , cattle are dumb , docile creatures , used to humans ……………Bulls on the other hand are a different story , they will go after you , with no hesitation ! This will most likely be a very rare occurrence , because they are segregated from the cattle by the Rancher , they are only used for breeding , and even then , its very controlled . You will most likely only find a bull in a pen , close to one of the ranch buildings ….not roaming freely like the rest of the cattle ………….now a day , breeding is done artificially in many cases ……its just more efficient for the modern Rancher . If they still do it the old fashion way , its not unusual for one Rancher to own a bull , and several other Ranchers renting it ………this makes your chances of running into one even that much less .