That poor calf, it wasn't even a fully grown cow - it is between the calf and fully grown stage. It might not have left its mother that long ago. I grew up on a farm and sometimes animals escaped and were in our back garden just chilling (I woke up to some outside my bedroom window once) and get some food you were sorted. I am sure other farmers would have help, shake a bucket they will come. It was probably absolutely petrified being away from its herd and it charging was a defence mechanism. There are so many ways to deal with animals, dart it, get it somewhere quieter, not bloody run it over TWICE and injure it. What absolute twats.