Prince William and Kate Middleton called the attention of one DJ after he made fun of their daughter, Princess Charlotte.

In September, Princess Charlotte arrived at Thomas’s Battersea for her first day of school and was accompanied by the Duke and Duchess of Cambridge. The adorable 4-year-old shook hands with the headmistress of the school during their first meeting.

DJ Greg James mocked Princess Charlotte after seeing her gesture. The Radio 1 DJ questioned why the young girl shook the headmistress’s hands and said that no one does this in real life.

Weeks later, James was invited to Kensington Palace alongside the other Radio 1 Teen Heroes. While there, he spoke with Prince William and Middleton.

“They said: ‘We were listening on the morning of little Charlotte's first day, and we want to talk to you about the handshaking thing...’ I went, ‘Oh God, no!’” he said.

The 33-year-old went on to defend himself by saying that children during his time didn’t normally shake hands with their teachers on their first day of school. James couldn’t believe that the Duke and Duchess of Cambridge heard his previous comments.

Meanwhile, Prince William and Middleton are quite protective of their children. However, they are also trying their best to give them a normal life as possible.

“Kate has always wanted the children to live in the real world,” the insider explained. “She and William don’t want them to live in a gilded bubble. They want them to grow up having the same experiences as other kids,” a source told The Sun.

The source also said that Prince William and Middleton’s desire to give their kids a normal childhood is inspired by how Princess Diana raised her sons. When she was still alive, the Princess of Wales took Prince William and Prince Harry to McDonald’s to buy Happy Meal. She also sent them to a public school.

Prince William, Prince George, Kate Middleton and Princess Charlotte Prince William, Prince George, Kate Middleton and Princess Charlotte arrive at the Victoria Airport on Sept. 24, 2016, in Victoria, Canada. Getty Images/Chris Jackson