LONDON — Since Britain voted to leave the European Union in 2016, the mind-numbing debate has been peppered with blunders that have looked, at times, like satire.

This week was no different, with a slip-up that stole the show as seven lawmakers resigned from the opposition Labour Party on Monday. During a news conference broadcast live on the BBC, an unidentified person was heard providing vulgar off-camera commentary.

The BBC apologized soon after, though the broadcaster said it was confident the comments did not come from one of its employees, a spokeswoman said in an email on Tuesday.

The mistake is one in a long line of incidents that have inspired a dose of mockery at the expense of Britain’s leaders as they have fumbled through the withdrawal process known as Brexit. We gathered some highlights below.