The “collective” drone idea follows another interesting scheme depicted in an Amazon patent document published in April: flying warehouses held aloft by blimps.

The tech giant abandoned projects involving cargo blimps, vertical farming and seawater-to-fuel technology that proved too difficult or expensive.

So we targeted undecided lawmakers with protests and flew inflatable blimps outside their offices.

He is less Colonel Blimp than Derek Trotter, the wheeling, dealing, infinitely versatile hero of “Only Fools And Horses”, a well-liked sitcom.

As the Goodyear Blimp floated, Gardena Serra’s football stadium was being turned into a college environment on Friday night.

Blimps were quickly replaced by airplanes, and then jets as paranoid individuals continued to look skyward to see their tormentors.