Is it surprising? Reckless idiots who wont follow the advice are putting their neighbours and more importantly their families lives at risk. I would warn them first, but if I didnt like their reaction, I’d dob them in too.
"If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or your arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that you were our countrymen." - Samuel Adams
I gather by your spelling of "neighbor," and your use of "dob," you were never our countryman anyhow, subject.
Read the thread - how we deal with snitches on this side of the pond hasn't changed much in 244 years........
You'd "dob in" the family hiding Anne Frank, too, using that logic. Re-think what you are saying.