DJ Suzie McGuire and husband had alcohol "issues" THE father in law of Former Clyde 1 DJ Suzie McGuire told a court his son vandalised her car because he was so distraught at reading in a newspaper she had an affair with a footballer. Robert Mitchell, 64, fought back tears when he was questioned about the article that was in the News of the World newspaper in April 2010. He said he felt sorry for his son Derek, 35, who he said was responsible for almost £5,000 of damage done to Miss McGuire's Audi. Mr Mitchell said there was issues with alcohol for both his son and Miss McGuire and claimed that on a weekend away last July in Arran, she "just sat at the bar" while her children were watched by others. The court also heard from a friend of Miss McGuire, Nicole Weaver, who said that at an event at 29 Private members club at Royal Exchange Square in Glasgow when Mitchell allegedly slapped and bit his wife, that lingerie tycoon Michelle Mone was in the toilet with her moments afterwards. Mitchell is on trial at Paisley Sheriff Court accused of committing a string of offences between March 2009 and October 2013 including assaults and breaches of the peace. Makeup artist Miss Weaver told the court she saw Mitchell attack Miss McGuire at the event in December 2011. She claimed she saw Mitchell lunge towards her friend and do what she thought was a headbutt but turned out to be a bite. Defence lawyer Billy Lavelle said: "You said that you went back to the bathroom with Suzie McGuire after the incident?" and she said "yes." He then asked: "Just you that went back to the bathroom with her?" and she answered: "Michelle Mone was there as well." It was put to her that Mitchell was put out of the event because he was drunk but Miss Weaver said "He was taken out because he attacked Suzie." Giving evidence Mr Mitchell told the court that his son vandalised Miss McGuire's car in April 2010. He said: "I certainly believe my son vandalised the car, I met him that day, the day of the incident. He was totally distraught and I surmised he had damaged the car. I could see how distraught he was over something he had read online. The witness said he felt a responsibility and paid for the damage to be repaired which cost £4,990. He said he did it because he felt responsible for his son behaving in that way and to give their relationship a chance. Cheating Mr Lavelle asked the witness: "On the face of it this was a story about Suzie McGuire cheating on your son in a national newspaper?" He replied: "Yes." Mr Lavelle continued: "With a footballer." Mr Mitchell said: "Yes." The defence lawyer continued: "And your son was distraught about it?" Mr Mitchell answered: "There was no doubt he was distraught on the day in question." The witness fought back tears when asked how he felt about the article - that he told the jury he didn't read. He said: "I felt very sorry for my son because I knew how he felt about Suzie and I knew it would have been very hurtful." Speaking about the damage caused to the car, Mr Mitchell said: "There was absolutely no excuse for it despite the fact he clearly felt betrayed." The jury heard Miss McGuire told Mr Mitchell that his son had assaulted her on Christmas Eve 2009 but that there was no injury he could see. He said: "I think she mentioned a bite mark on the cheek and that he tried to choke her. I saw nothing, in fact I gave a statement to that effect to the police. Mr Mitchell told Mr Lavelle that alcohol was an issue for both his son and Miss McGuire and told of an incident last year in July. He told the jury: "We invited the family over to Auchrannie on Arran for the weekend, I was paying for everything because we were celebrating our 40th. Everybody enjoyed it but I do recall during that weekend that Suzie certainly enjoyed it a bit more than most, to the extent my wife and I and my daughter and my son for that matter, really looked after the children Millie, Daisy and Oliver and Poppy for the entire weekend. And I did feel that Suzie, whether it was depression or whatever, she just sat at the bar. In fact she sent me a text apologising at the end of the weekend and a cheque for £100 which I never cashed. Mr Lavelle asked what Mr Mitchell thought of the couple's relationship. He told the court: "Well, given my relationship with Suzie and Derek through these years it seemed to be filled with affection, love and devotion for one another." He added that they had the odd argument but said "They always assured me face to face or by text how much in love with each other they were and what a perfect family they had." Mitchell denies the charges and the trial continues.