Chris Pratt watched a young boy "eat a plant in an oven" when he was supposed to be babysitting him.

Chris Pratt

Chris Pratt

The 37-year-old actor - who shares four-year-old son Jack with wife Anna Faris, 40 - had no experience with kids at the time of the heart-stopping incident and has recalled how he fell asleep while watching a friends' son and daughter, resulting in the young boy ending up in the oven.

He said: "I was not a good babysitter, I wasn't qualified. I was the youngest child and had never really been around kids and I was like 'I can babysit, 20 dollars I'll do it.'

"And then I would be like, 'Well I'm guess I'm here' and the one point I remember was, I was babysitting this little boy and his sister, and I fell asleep on the couch and I woke up and he was in the oven, he was eating a plant in an oven. I'm not lying this is a serious story."

The 'Jurassic World' actor was speaking on 'Good Morning America' on Wednesday (07.12.16) when he revealed the babysitting mess-up, but reassured the audience that the oven was switched off and he wouldn't be making the same mistake with his own son.

Chris said: "He's four now, I have a little more experience" followed by a joking apology to the child's mother who he hoped was watching.

The show panelists also touched upon his on-screen chemistry with co-star Jennifer Lawrence in upcoming sci-fi movie 'Passengers' in which the pair fall in love after being awakened 90 years too early as their ship malfunctions.

Speaking of his co-star, Chris said: "Thankfully, she's beautiful on the inside.

"Honestly, her sense of humor. She's really, really funny. She totally rolls with the punches. She's genuinely hilarious. We laughed every day, all day making this movie."