Did he or didn’t he?

One day after a Conservative backbencher accused NDP Leader Thomas Mulcair of firing an F-bomb at the Speaker of the House of Commons, it’s impossible to find any evidence Mulcair actually swore.

MP Mark Warawa, who represents the B.C. riding of Langley, rose on a point of order Thursday to claim Mulcair had used “inappropriate language.”

The curse word was allegedly uttered earlier that day, when NDP finance critic Nathan Cullen expressed frustration that Finance Minister Joe Oliver wasn’t in the House to answer questions on the budget.

Cullen broke a rule of debate that members can’t allude to the presence or absence of an MP, so House Speaker Andrew Scheer pointed that out.

According to Warawa, that’s when Mulcair swore at the Speaker. But there’s one problem -- nobody else heard it, including Scheer.

“Not having heard what the member for Langley indicates he heard, I am in no position to make a ruling on this one,” he said.

If you want to try to hear the mysterious F-bomb, we’ve attached video of when Warawa claims Mulcair said it.

The Conservatives have a history of trying to paint Mulcair as quick-tempered.

During a testy exchange between Mulcair and House Speaker Peter Van Loan last December, Van Loan claimed Mulcair “totally snapped” when he “might have used a colourful word.”

One person who isn’t bothered by Mulcair’s reputation for anger is his wife, Catherine Pinhas.

“Thank God,” she told W5 last month. “There are things that happen that somebody has to be mad and say it and change it.”