Bob Maynard once said that Problems are opportunities in disguise. And this is exactly what happened to Kayleigh O'Conno, a 24-year-old media student at Birmingham City University, who had a habit of finger biting. Kayleigh started glueing on false nails when she was around 16/17 because she bit her own so badly that they looked like something out of a horror film - and not in a good way. After a while she started painting designs on them so they didn't look so boring, and then it went a bit…