House of Commons
David Cameron's first prime minister's questions as leader of the opposition, and first head-to-head with Tony Blair, came in December 2005.
Mr Cameron had been elected as the new leader of the Conservative Party only the day before, beating fellow contestant David Davis.
The theme of prime minister's questions was education reform, and unusually the session began with a show of unity - a vow from Mr Cameron that his party would support Mr Blair's reforms.
But normal service resumed in no time as the two leaders came to blows over school admissions policy.
Mr Cameron accused Mr Blair of being stuck in the past while he wanted to talk about the future. He continued to taunt the prime minister by adding, "he was the future once", as laughter erupted from the opposition benches.