My Parents have a lovely little Staffie. She is well fed, well exercised, lots of toys to play with, has a great gentle temperament and always people in the house fussing over her, so don't think she's bored. But she just has to be ( playfully ) biting all the time. Whether it's your glove, scarf, your hand, your shoe, bag, the table leg, anything in front of her and she will have a go. The vet says her teeth and jaw are fine, no teething either as she's now 15 months old. My Mum and Dad have tried lots of things with her but she'd still 'nibbling' at things. Does anybody have any idea as to why she is doing this? Thanks for any advice.