Michael Weatherly is a doting dad to three children, August, Olivia and Liam, and during the week he shared an insight into Liam's life.

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In a broody clip, Michael was sat in a café and he recounted a 'knock knock' joke from his youngest son. Taking on a dramatic voice, he made his way through the joke, before adding 'who's there?': I don't know. I don't know, who? I don't know who because you said I don't know who to. Liam Weatherly, knock knock joke."

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In his caption, the star said: "Thinking back on #knockknock jokes. I think my son may be a combo of Samuel Beckett, @kanyewest and @DrSeuss and Yes, I realize Samuel Beckett is the only one without a @verified handle."

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Fans found the clip hilarious, as one said: "LOL Liam is fantastic, he looks like you more as keeps growing up. God bless your beautiful family."

A second commented: "Makes more sense than my teenagers," while a third added: "Simple Michael, he's inherited your sense of humor!"

A fourth wrote: "Good one Liam, always enjoy a good knock-knock joke," and a fifth shared: "I think maybe a bit of dad humour there too."

Michael shared an amusing clip about his son

Michael shares eldest son August with his ex-wife Amelia Heinle, while he shares daughter Olivia and son Liam with current wife Bojana Jankovic.

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Last month, Michaelrevealed how smitten he was with his wife when they first met, and that he even flew to Paris in order for the couple to have a first date.

Recalling the heartwarming moment in an interview with Oprah Winfrey, the star explained: "I ran into this beautiful woman with her hair in a ponytail and I was smitten, and I said 'I'm going to take you out to dinner.'

Liam is Michael's youngest son

"I was in Vancouver where she lived and was in medical school and I was just visiting seeing the Police in concert, seven years ago, and the beautiful Bojana my wife, I said 'tomorrow are you free for dinner?' and she said 'I'm very busy' so I said, 'Next week I'll fly back from LA' she said I can't, 'I'm going to Europe for three weeks with my girlfriends but I'll be back' and I said, 'Where are you going' and she said, 'Well I am in Paris for the first night…' and I said: 'Paris? How about if I take you to dinner in Paris?'"

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Michael's romantic gesture worked as following a two-year long-distance relationship the couple wed in 2009 and have been going strong ever since. He added to People: "My kids and my marriage are the things I'm proudest of."

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