Santa's knee off limits? A small town in New Zealand has banned children from sitting on Santa's knee because organisers fear liability if anything goes wrong. Instead, children in the South Island village of Mosgiel will be asked to sit next to Santa, on specially decorated “elf chairs”, as they discuss their Christmas wish list. Organiser Gail Thompson, secretary of the Mosgiel Business Association that is organising the event, says the precaution is “ridiculous” but necessary. She fears children could come back in at a later date with allegations about Santa's behaviour. “None of us really want the risk of…