Chasing back may work for us adults who are a lot bigger, but I would be worried that with kids around they might see this as a challenge from a rival of equal size and be even more likely to escalate. I would definitely stop the treats and if he keeps it up, the free ranging would end. Before selling him I would want to see where this all ended up, I wouldn't want to see someone else less knowledgeable end up with him, as someone could really get hurt. Roger has not shown any aggression toward me yet, when I moved him I just cornered him and picked him right up, he squawked at me but was completely compliant. He just reminds me of Poppie, and the BS you had, more interested in fighting other males than anything and prone to taking out his aggression on hens. Roger is not as imprinted as Chirpie the spalding, he has never been comfortable with being petted or touched the way Chirpie is, but because of all the handling when we were taping his legs for the TT, he got used to being picked up.
He seems to get mad when he doesn't get his way. We will dispense with the treats and see how it goes. Thanks!