So much laughter from this....
This during PMQ's... Johnson refusing to back down on the amount of wasted tax payer money being spent to secure PPE then this came up...
Meanwhile the PM was forced to defend his comments this week to MPs, calling Scottish devolution a “disaster”.
Mr Johnson replied: "I think what has unquestionably been a disaster is the way in which the Scottish National Party have taken and used devolution as means not to improve the lives of their constituents, not to address their health concerns, not to improve education in Scotland, but constantly - and I know this is actually a point of view that is shared by (Sir Keir Starmer) - but constantly to campaign for the break-up of our country.
"To turn devolution, otherwise a sound policy for which I myself personally benefited when I was running London - but turn devolution into a mission to break up the UK.
"That, in my view, would be a disaster."
But Sir Keir hit back: “The single biggest threat to the future of the United Kingdom is the Prime Minister every time he opens his mouth".