'It's really time you grew up': Former soldier attacked ex's boyfriend with a clawhammer in Glasgow Glasgow Sheriff Court A FORMER soldier attacked his ex-lover’s boyfriend with a clawhammer. John Train pounced on John Mills outside Michelle Muir’s flat in Glasgow’s Whiteinch on March 17 this year. The 43 year-old - a Northern Ireland veteran - pleaded guilty to assaulting the victim to his injury. But, Train, of Clydebank, was spared jail as a sheriff told him to "grow up". Both men had been at the home of Miss Muir, who had been celebrating her 40th birthday. Mr Mills had stood outside the property.