It was a truly bizarre moment in what has been a confusing and surreal campaign for the prime minister, to say the least.
The initial stunt was predictably mocked on social media but it was arguably Labour who came up with the best response to Johnson's JCB antics.
Replacing the word "gridlock" with "NHS" and Johnson's digger now bearing the words "Tory cuts" Labour made a cutting point about the government's austerity and their supposed plans for the National Health Service.
Tory cuts have almost demolished our NHS.
It's time to save our NHS. #VoteLabour https://t.co/VCzH57KXks