The old Y2K preppers had a hilarious and wonderful idea on how to keep the bad guys away if things get ugly....
Buy some red ribbon—a lot of it—and some spray paint.
Paint on the doors “Quarantine” and then put red ribbon all over the door areas and wherever else makes sense for the specific property.
Then if anyone actually approaches look as sickly as possible.
Lol.
That’s the best idea I’ve read in weeks, maybe months, maybe ever. It’s so crazy it just might work!

