A man on trial over an alleged plot to attack London broke down in tears as he recalled the moment he believed he was being asked to be a suicide bomber.
Manfo Asiedu is accused of involvement in the July 21 plot
Manfo Asiedu told Woolwich Crown Court he became "terrified" when shown how to detonate a rucksack device.
Co-defendant Muktar Ibrahim has claimed the plan was only to set off fake bombs on 21 July 2005 as part of a protest.
Mr Asiedu, Mr Ibrahim and four other men deny conspiracy to cause explosions and conspiracy to murder.
The other men on trial with Mr Asiedu, of no fixed abode, and Mr Ibrahim, 29, of Stoke Newington, north London, are: Ramzi Mohammed, 25 and Yassin Omar, 26, of New Southgate, north London; Hussein Osman 28, also of no fixed address; and Adel Yahya, 24, of Tottenham, north London.
The prosecution have alleged the men set out to target London's transport network as part of an extremist Muslim plot but the devices failed to successfully detonate.
Mr Asiedu, who is said by the prosecution to have lost his nerve and dumped his device, has said he was not a "fanatic".
He told the court he left the device he was given in a west London park as he "just wanted to get rid of it".
He said Mr Ibrahim had told him the devices would "not hurt anyone".
He told the jury: "It didn't make sense to me. I didn't know whether this was hoax or real or anything to do with terrorists.
"But I didn't want anything where the police got involved in it.
"I thought: 'I don't want to listen no more. I have heard enough. I just don't want to have anything to do with it."
On his second day of giving evidence, Mr Asiedu confirmed he had bought some of the hydrogen peroxide the prosecution say was a component of the bombs along with chapatti flour, acetone and acid.
However, he said this was at the request of Mr Omar, who had provided him with a place to stay.
Mr Asiedu told the court he thought chemicals were for cosmetics
He told the jury he came to believe the hydrogen peroxide was to be turned into cosmetics for a market stall run by Mr Ibrahim.
At one point, Mr Asiedu needed several minutes to compose himself in the witness box.
He broke down after telling the court of how Mr Ibrahim demonstrated the rucksack device on the morning of 21 July 2005 - two weeks after suicide bombers struck in London on 7 July 2005.
"He started to explain for the first time as if he has been talking to me before," Mr Asiedu told the court.
"I was waiting for him to tell me if this was a suicide bombing or not.
"This was my belief, that this was going to be a suicide bombing because it just happened two weeks ago."
He told the court: "I wanted to live. I wanted to have a good life. I wanted to support my family. It is just something that I have never thought of in my life."
Earlier, Mr Asiedu denied having watched extremist videos found by police at the flat where he was living showing beheadings and instructions on how to be a suicide bomber.
The trial was adjourned until Thursday.