Boris Johnson may have travelled up to Glasgow to avoid sleaze and corruption claims but he has been plunged into even deeper hot water.
WHO Covid Speial Envoy Dr David Nabarro has criticised the Prime Minister for walking through a hospital earlier this week without a face mask.
Mr Johnson paid a visit to Hexham Hospital, Northumberland on Tuesday, as MPs flocked to the Commons to debate the last week's Tory sleaze scandal.
He was pictured with the sleeves of his white shirt rolled up, and his tie tucked into his shirt, pacing through the hospital next to NHS staff who were all wearing facial coverings.
Dr Nabarro told Sky News every leader should be wearing face masks, particularly when indoors.
"I'm not sitting on the fence on this one - where you've got large amounts of virus being transmitted, everybody should do everything to avoid either getting the virus or inadvertently passing it on."

He stressed mask wearing reduces the risk of spreading Covid, alongside social distancing and regular hand washing.
"Perhaps the toughest thing about Covid, is that responses get politicised - in some places if you wear a mask, you're taught to belong to a particular party.
"That's the most regretful thing about the present situation; we all need to be able to do what we've got to do, regardless of what politics we adopt."
As Dr Nabarro slammed the Tories, the latest official stats show there were 27,872 new cases of positive Covid tests in England alone on Tuesday November 9th.

Shadow Health Secretary Jon Ashworth blasted Mr Johnson for not only opting to walk around maskless, but for also being too cowardly to show up to the Commons.
"So not only is Boris Johnson too cowardly to turn up to Parliament to defend the sleazy corrupt government shenanigans of recent days," Mr Ashworth wrote on Twitter.
"He's now irresponsibly parading round a hospital without a mask.
"Patients and NHS staff deserve better than this."

The PM was even pictured elbowing NHS staff as he greeted them still not wearing a face covering.
Mr Johnson's official spokesperson insisted he was following the rules.
A No 10 spokesman said: "I am confident he will have been abiding by the rules in place."
Official guidance for Hexham hospital, which is part of the Northumbria NHS Trust states: "Anyone attending our hospitals and community settings must continue to wear a face-covering at all times to protect patients, visitors and staff."