When the subject of Guinea foul being aggressive towards people has come up, I haven't read where anyone has had this experience. I have 6 guinea hens and 8 males. The males are very aggressive towards each other and now they are charging me. Today I hit one with a stick that I threw and he actually came at me again and another male joined in. The hair on the back of my neck stood up. It wasn't a good feeling. I finally made it to my water hose and a good spray of water drove them away, but I wonder now about the safety of my grandchildren when they are out playing. I plan to get rid of the males one way or the other. The females are no problem except when they get stubborn about going into their run at night.