You can see why graziers want pros not yobbos on their properties.
In defence of yobbos the vast majority aren't going to harm the stock but a few foxes or pigs and it's beer o'clock.
I've chopped the heads off chooks destined for the table before going to school, as a boy watched cattle pole-axed in a slaughterhouse and spent a year at an Ag College but I am not cut out for that work. OK it MUST be done.