Warren Ellis worries about the dogs taking over. Me being a country boy, I worry about the cows. From the BBC (link):
A Sussex policeman has been discharged from hospital after an attack by about 50 cows left him with four broken ribs and a punctured lung.
I'll be eyeing the cows outside the back window with suspicion from here-on in.

If it took fifty cows to mildly damage one policeman, I don’t think it’s time yet to be worried about them. When they start singing Cows with Guns, that’s the time to panic.
Perhaps, but let’s not forget he escaped (ironically) because his dog ran away and distracted them from their human meat-feast.
I’ll be right behind you in the race to the hills.