If you come on my property to ask about my personal medical information, there will be a problem.
Wow, you seem to be a total badass.
Here, it’s an issue of people trespassing on the Dobermanns’ lawn.
They own it.
I just mow it.
;D
If my husband were still here, he would tell them thusly: we have a dog that is not friendly and likes to bite; are you still interested in coming in?