Rock fan Jennifer Lovell has been left with a £12,000 dentist bill following a stage-diving accident at a Hawthorne Heights gig in 2006.During the band’s show at the Bristol Academy, guitarist Casey Calvert – who died in November 2007 from an accidental drugs overdose – staged dived and landed on Jennifer’s head, breaking her jaw.Calvert was uninsured at the time.According to The Metro, Jennifer was awarded £1,000 compensation from Calvert’s estate, but was told there was no more money to cover the rest of her dentist bill.