Deer-collecting deputy head, Peter, is the next Come Dine With Me - South London host to take up the gauntlet - but will his cooking stag-ger his guests?Peter Rixham describes himself as 'surprisingly single' and it's certainly not because of a lack of equestrian wear: "I've got some riding boots here, never worn them but I thought if someone ever says 'do you want to go riding?' that could be fun."