Paddy McGuinness has admitted he made a "schoolboy error" by leaving his five-year-old daughter unattended "for less than a minute".
He had left her by herself with a marker pen and then came back to find his Apple computer had been scribbled on.
The TV presenter and his wife Christine have three children, eight year-old twins Leo and Penelope, and five year-old Felicity.
And on Sunday he said he took to social media to admit he had made a judgement error by leaving Felicity alone with a marker pen.
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Sharing a snap with his Instagram followers, Paddy wrote: "Left my youngest daughter unattended, with a Sharpie, for less than a minute! Sunday was fun. #dadneedsanap #nothingavodkacantfix #sunday #monday #kids #schoolboyerror"
An image with the post shows a Mac computer, with black scribble all over the Apple logo.
Paddy's fans were quick to see the funny side.
One user wrote: "My boys seem the same. They seem to find pens from nowhere too"
Another said: "Flash wipes have got sharpie marker off a TV once before!!!! ha x"
A third user commented: "I dare not do that and my youngest is 14, it’s their inner artist always waiting for an opportunity!!"
Others suggested using hairspray to get the marker off.
Paddy and Christine's "Our Life and Autism" documentary aired on BBC One on December 1.
Christine and all three of their children have been diagnosed with autism.
The hour-long show saw them meet other parents, experts and people on the autism spectrum.
