When I went out to the coop this morning I opened the people door to check the food level in the chicken feeder. While the door was open the rooster came out. I closed the door so the hens could come out the pop (is that what it is called?) door. Well the rooster who is an 18 week old RIR started attacking my legs. I was running to get away from him. What did I do to set him off? Is this a sign he is going to be a mean rooster?