Leave it to a toddler to pull this stunt.
A young girl, meeting Pope Francis while on her first trip to Rome, wasted no time in stealing the pontiff's skullcap.
Three-year-old Estella was lifted up by a Vatican aide, and plucked off the Pope's zucchetto as he leaned in to give her a kiss on the cheek.
Luckily, he appeared to have a sense of humour about it, grinning and laughing as he took the cap back.
Estella's godfather posted a video of the interaction to Twitter Tuesday.
Took my Goddaughter to meet the pope. She stole his hat! pic.twitter.com/SdSorop3uN
— Mountain Butorac (@MountainButorac) March 22, 2017
"Right before she went up she was a little nervous," Mountain Butorac told CNN. "Then she stole his hat. It was hilarious, everyone was laughing including the Pope."
"It's her first full day in Rome, who knows what she will get up to tomorrow," Butorac joked.