Killing him really is not funny. He is not being spiteful or anything that needs punished like you make it sound like. He is just doing his job.I have a roo that is fixing to be in the freezer as well. I never had fear and one day he just started attacking me from behind. We have had it out and I'm not afraid to go after him. He never attacked my husband, and my husband thought I was crazy until one day he watched the roo attack me from behind. Finally after a month he started attacking my husband. I assure you, my husband was not afraid or worried about being attacked by him. He is just a mean roo, probably doing his job protecting the ladies, but never the less, he is on barrowed time. He would already be in the freezer if it was up to my husband. Until I get a more protected run he can keep on coming at me, he seems to be keeping them safe. But like others said, there are roo's that are nice and not aggressive. It's not worth being beat up every time you go to the coop. Fighting back has not helped me at all. I have to carry a stick every time I go check the ladies. Its not fun at all. My roo don't even have competition, but he has to go. I have already ordered two to replace him. Hoping I can get one nice one eventually. When I was telling my aunt ( that had raised her fair share of chickens growing up on a farm), she said "cut its neck , there is no place for a mean roo in your flock". I had to laugh but I could never see her putting up with being attack by a chicken. Sorry about Lester, despite what some are saying, you just cant fix them sometimes (I was holding out). Hope the others you have