A 12-year-old schoolboy who was excluded from school hanged himself just hours later, an inquest heard today.Jordan Green, 12, had hurled chairs round a room, sworn at staff and threatened them.At first he was excluded from school for one day and when his behaviour worsened the ban was increased to five days before eventually the principal banned him permanently.And when he told his mother Heidi of the ban he said: 'Have a nice life mum, I just feel like killing myself'.Ms Green said she tried calling him later, adding: 'He wouldn’t answer his phone and I thought "he obviously doesn’t want to speak to me".'The hairdresser said she returned to their home in Harrogate, North Yorkshire, after 8pm and told the inquest: 'I assumed that he wasn’t home.'I thought he was playing with his friends.'Medics believe he had been dead several hours when his body was found on June 27 last year.