Dads have found a new way to pass time when their babies are napping in the day - and it involves cereal.
The Life Of Dad community challenged fathers to take the "cheerio stack challenge" and see if they can balance more than five pieces of the cereal on their little one.
And dads rose to the challenge.
The Life of Dad Facebook account have started sharing some of the best attempts on Facebook.
Those who didn't have cheerios to stack still wanted in.
And then a few dads started raising the bar...