I gotta agree with the rest...In my opinion, cold and frosty. I'm not that concerned about the hens backs (he could still grow out of that) but don't tolerate a human aggressive rooster. I don't know how old your kids are but he could get out. It's not worth the chance when there are plenty of other roosters around that are not human aggressive.
And yes, it won't be easy, but the flock and family will both be better off for it.
I had to cull my favorite Roo a few months ago, he was just way to hard on the hens, even though he was people friendly... and we have another roo I think is headed to freezer camp in the very near future for the same reason. It's not worth risking injury to humans or hens.