SINGAPORE - Born without arms and legs, he was the perfect target for bullies.
They called him names and told him that he would never amount to anything.
They even tried to goad him into fights.
The bullying got so bad that Mr Nick Vujicic attempted suicide when he was just 10 years old.
Despite his bad experiences, the 31-year-old, who is now a renowned motivational speaker, said he would not mind if his son gets bullied in the future.
For the father of year-old Kiyoshi, what matters is whether the child can overcome the bullying.
"Everyone experiences bullying at some... level, so I can't protect him but I can equip him (with what is needed to handle bullying)," Mr Vujicic said yesterday at a press conference to promote Stand Strong, his new book on bullying.
He explained: "The world, unfortunately, is cruel. The world judges sometimes. The world stereotypes.
"I want him (my son) to see that there will be times when people just attack people for no reason."
He added: "You can't overcome a struggle if you don't face a struggle. So I'm not worried - I just want to do all I can to be the best daddy I can be."
Stand Strong is Mr Vujicic's sixth book and is aimed to help teenagers and adults handle and fend off bullies.
The book is available at all major bookstores and 5,408 copies have already been sold here, propelling it to the top of the national best-sellers list for the past four weeks.
Singapore is Mr Vujicic's last stop on his 16-day tour to promote the book.
After visiting Vietnam, Malaysia and Hong Kong, the Australian flew here on Thursday evening and will return home next week.