If we do have to control foxes, shooting is much more humane method than chasing after them for an hour or two only for them to dieof either aheartattack or the body being ripped to shreds by a pack of hounds which have been starved before the hunt.
Like most physicians, Bolli was taught that heart cells don't regenerate, and that any cells which die from loss of oxygen during aheartattack are lost forever.