They say laughter is the best medicine, so it's no surprise that David Cameron has tried injecting a bit of humour to alleviate tension in Parliament.
Addressing the House of Commons on Monday, barely three days after resigning as Prime Minister following last week's EU referendum result, he had a cheeky dig at Labour's rapidly depleting quota of shadow cabinet ministers.
Minutes after new Labour MP Rosena Allin-Khan swore the oath of allegiance to take her seat as Tooting MP in the Commons, the Prime Minister said: "I think I'd advise her to keep her mobile phone on, she might be in the shadow cabinet by the end of the day."
Mr Cameron had to pause as MPs laughed at the joke, before noting: "And I thought I was having a bad day."
At least 24 Labour shadow cabinet ministers have resigned from their roles in just one day after their leader Jeremy Corbyn sacked shadow foreign secretary Hilary Benn - in connection with numerous claims that Corbyn's efforts to back Labour's campaign to keep the UK in the EU were inadequate.
Earlier, one Tory MP shouted "give her a job" as Ms Allin-Khan had finished taking the oath - again prompting laughs in the chamber.
Cameron kept the jokes coming through the afternoon meeting, saying: "You won't be surprised to hear I won't be holding another referendum any time soon."
Talking about his continuing political aims, he added ironically: "What will I fill my time with now?"