I am the mum of someone who has been bitten 3 times on both arms the same day and one more the previous week! It is very upsetting, especially when my child now thinks that it is ok and started to bite his own arms! I really don't want him to learn to retaliate especially when we are about to have another child. I know that bites happen and I really don't need the identity of either the mother or the child as that doesn't help me or them however I do expect to hear the mum's concern through the nursery and expect her to follow their advice which in this case is the advice of the experts not only for being present when the bites happened but for their experience in dealing with children. An apology doesn't resolve the problem but does indeed reassure the mother about the other's parent's intention to cooperate with the problem not only for the child who has been bitten but the behavioural problem of the child who bites. I believe that the nursery plays a massive role in resolving the issue and it is for them to make all reasonable and beyond if possible, endeavours to avoid a further biting episode. Most nurseries (as it should be) have enough members of staff to be able to look after children at all times otherwise they wouldn't have the licence and wouldn't charge so much for nursery fees, so it is not unreasonable and in fact it is expected for a nursery to accept full responsibility and do everything to resolve the situation and especially to put both mothers' mind at rest. How many bites is too many to start resolving the issue with ofsted instead of the nursery?