The way that worked for us in dealing with aggressive roosters is this: We had several RIR roosters that were very aggressive. They would run after you and act like they were going to fly up at you. I would start clapping my hands in a wide way, putting my arms out and clapping while running after him for a while. I didn't just charge after him and then quit. I made him run for his life. If that didn't work my husband showed me another way. Grab that rooster and hold him down in front of all of the hens. Keep him down until he submits and then keep him down a little longer. Then let him go and shush him away. If you are really afraid to grab him; wear a pair of long work gloves and then just be brave and grab him. It does make a difference in your attitude to how these roosters respond to you. I use to be afraid and then decided to bring on my dominate attitude and found that this works. Now, when there is an aggressive rooster, I get irritated and make my moves on him. lol This has worked for us and hope this helps others as well. Let me know if it does. Would love to hear all about your stories.