David Cameron has faced what he called some "very difficult questions" from school pupils, as part of School Report News Day.
David Cameron was asked about gang violence and university fees...
The Conservative leader was asked a range of questions by students from George Green School in east London, when they visited him at his Houses of Parliament office for a television interview.
He dealt calmly and at some length with questions on a range of topics including health, gang violence, immigration and university fees.
But the students made him visibly uncomfortable when they focused on what he had been like at their age - with questions about kisses, being naughty and teddy bear names.
The first questions were quite serious.
"If you were prime minister what thing would you definitely change that you think Gordon Brown is doing wrong?" was one.
"As a young person living in an inner-city, I see a lot of gang-related violence. How do you think this can be prevented?" was another.
...before being stumped on the name of his first teddy bear
On his first changes, Mr Cameron said he wanted to halt closures of accident and emergency units and maternity units in hospitals.
"Also, special schools. I'm a big fan of special schools, I think they're really important for some of our most vulnerable children. Too many of them are shutting and I'd like to stop that from happening."
On gang violence, he talked about the importance of discipline at home - and more importantly, in schools.
"In the end it does go back to making sure we bring our kids up properly, making sure we have proper discipline at school, making sure the police have got the powers to go and search people for guns and knives. It's all of those things," he said.
"But I think the single most important thing is probably school, because whatever background you come from... the one place where we can get some discipline and order into people's lives is in school."
'I'm not going to tell you'
He then risked unpopularity when asked what he would do about fees for university students.
"You're not going to like this, but I'm afraid the fees are going to stay," he said.
"If we want to have really good universities, with good lecturers, good size departments, make sure that they're well-funded, the money's got to come from somewhere, and I think it's right that students do make a contribution."
But he was less punchy when asked a few minutes later who was the first person he had kissed.
"Well it was probably my mum, but not like that you mean?" he said.
"I think it would be a bit unfair if I said on live television... she's now happily married so I don't want to interfere in her life, so I'm afraid I'm not going to answer the question."
He was then asked what was the naughtiest thing he had done when he was a teenager - and became even more cagey.
The students asked several questions he would not answer
"I did lots of things I shouldn't have done," he said.
"But I don't think I'm going to tell you what they are."
He put his head in his hands when asked the name of his first teddy bear.
"You ask very difficult questions," he said.
"The awful thing is, I can't remember."
Afterwards, he mused: "Who was the first person you kissed? That was such a good question. I had to think for a minute, actually, on that one."
PM Gordon Brown and Liberal Democrat leader Nick Clegg have also been put through their paces by students - as have Northern Ireland First Minister Ian Paisley, Scotland's First Minister Alex Salmond and Presiding Officer of the National Assembly of Wales, Dafydd Elis-Thomas.