Paddy McGuinness has blasted Simon Cowell's parenting skills.The 'Top Gear' presenter - who has twins Penelope and Leo, born in 2013, and daughter Felicity, born in 2016, with wife Christine, 32 - hit out at Simon for his comments about nappy changing after his son Eric, six, was born.Paddy, 47, told The Sun on Sunday newspaper: "I remember seeing something when Simon Cowell had his son, talking about how he doesn't even think about doing nappies, he's never done a nappy ever, and I kind of th