PRANKING your kids can be fun – but has Chris O'Dowd started a bit early with his 15-week-old son?
The IT Crowd star was interviewed on American talk show Conan where he divulged the details of his long-term prank on his poor son, Art.
His plan is to have a very confused teenager wondering who his true family is in about 15 years’ time.
Take a look at the video and find out what his cruel, but ingenious plan entails...