Boris, Bring Back Air Raid Warnings!
Hey, during WW2, if the was an air raid, Sirens would be switched on to warn the public
An up and down siren tone, blasted out very loudly, meant "Quick - get in your shelters, ASAP"
A continuous siren meant "All Clear, go and sort out your bomb damage"
I suggest Boris brings this system back as the Government handles Virus alarms!
If the infection level reaches whatever target the Alarm goes off & everyone abandons the pubs, restaurants, shops, etc., and runs back to their bubble!
They stay in that bubble until the All Clear sounds.
No applause, for the idea, please, just throw half crowns!