The incident occurred as Johnson tried to put on a pair of disposable gloves during his visit Wednesday to an inoculation centre in Cwmbran. As a staff member suggested that the gloves might be the wrong size, Johnson said, “No, no, I got it, I got it, I got it, I got it, ah – like O.J. Simpson.”

The quip harkened back to Simpson's double-murder trial in 1995. The former NFL star, who has huge hands, struggled to pull on a pair of bloody gloves that prosecutors alleged he wore while murdering his ex-wife, Nicole Brown Simpson, and her friend, Ron Goldman. Asking Simpson to put on the gloves during cross-examination backfired for prosecutors, as defense lawyer Johnnie Cochran famously argued, “If it doesn't fit, you must acquit,” in helping to win acquittal for his client.

As recently as 2017, 71 percent of Americans in a CBS News poll still believed Simpson was guilty. A civil jury unanimously found him liable for the two deaths in 1997, awarding $8.5 million to Goldman's family.

It was little surprise, therefore, that referencing the controversial moment that helped acquit a man of a grisly double-murder didn't go over well, especially in the context of a virus that has killed more than 118,000 people in the UK. It didn't help, either, that the man making the comment is the leader of the nation with the world's highest Covid-19 per capita death rate.

“Do you feel like O.J. Simpson because you've both got away with murder?” one Twitter user asked Johnson. Other offended observers were similarly harsh. As one said, “I agree that Boris Johnson should have never likened himself to O.J. Simpson. O.J. killed only two people, didn't he?”