We acquired Barnaby at around 5 months of age, and halter-trained him as a calf. As a bull, he is still friendly and leadable; however, he thinks humans like to "play" like bulls, and he will push/butt his head at you when you come close to pet him. Because of this, instead of leading him by foot, we now lead him by tractor. However, he is still fairly easy to catch, and generally trustworthy. He can be tied for brushing, washing, etc. without issue. He has produced two calves, a heifer and a bull, with high probability of two more on the way.