Michael Gove took to the stage in the first of two special Question Time shows to put forward the case for leaving the EU.
The audience covered the usual topics like migration and the economy - but then the conversation took a more personal turn.
Just after Gove told the audience the tale of how his father was forced to close his Aberdeen fishing business because of EU policies, host David Dimbleby pointed out that his father had actually been quoted as saying that wasn't the reason at all - much to the bemusement of the studio audience.
Michael Gove's dad sounds like a top bloke. How he ended up with a son like this is anyone's guess #BBCQT
-- Sarah Melv (@sarah_eyebrows) June 15, 2016
-- Iain Jones (@Jonesbox) June 15, 2016
Gove then claimed his father had the words put into his mouth and passionately said that no-one should "belittle his suffering or try to get a 79-year-old man to serve their agenda".
"My dad was called up by a reporter from the Guardian who tried to put words into his mouth"-Gove. #bbcqt
-- Red Box (@timesredbox) June 15, 2016
(Something which the reporter in question denies.)
Michael Gove has accused me of "putting words" in his dad's mouth: I asked a straight question; he gave consistent answers - all quoted
-- Severin Carrell (@severincarrell) June 15, 2016
The heated discussion won him a fair bit of support from the people at home.
Fair play Michael Gove 100% passionately & proudly defending his dad #bbcqt
-- Rich (@Romsey_Squib) June 15, 2016
-- Paul C (@steamhead79) June 15, 2016
-- Toby Young (@toadmeister) June 15, 2016
-- Adam Elliott (@TheAdamElliott) June 15, 2016
#bbcqt Gove was telling the truth about his dad. Emotion showed through did you notice his accent changed to broad Scottish as he went back
-- Jim Saunders (@EastleighJim) June 15, 2016
But his angry approach didn't go down so well with everyone.
-- Helen Wyld (@realshawlrat) June 15, 2016
Pretty sure Gove has just called his own dad a liar. #bbcqt
-- Kingsley Chapman (@kingsleychapman) June 15, 2016
Hang on a minute, but you want your 79 year old dad to serve your own agenda... #bbcqt
-- Josh.Robbins (@joshrobbins96) June 15, 2016
-- Brandy Snap (@Brandy_Snap) June 15, 2016
Though as is often the case with all this EU stuff - when things get a bit heavy, make light of it.
-- C.C (@Wonder_Woman16) June 15, 2016