How can one safely and effectively collect bull semen?

Oh, dude, collecting bull semen is like a walk in the park... if the park was a farm and the walk involved, well, you know. Basically, you use a specialized glove and massage the bull's nether regions to get the job done. It's all about technique and making sure you don't end up on the wrong side of a bull's bad mood. Just remember, safety first, and maybe bring some hand sanitizer.